31. Lower vehicle. Refer to Lifting and Jacking the Vehicle in SI.2010 Cadillac Truck SRX AWD V6-2.8L Turbo Technical Service Bulletin # NHTSA10V223000 Date: 100524
Recall 10V223000: ECM Software Update
VEHICLE MAKE/MODEL: MODEL YEAR(S):
Cadillac/SRX 2010
MANUFACTURER: General Motors Corp.
MFR'S REPORT DATE: May 24, 2010
NHTSA CAMPAIGN ID NUMBER: 10V223000
NHTSA ACTION NUMBER: N/A
COMPONENT: Engine and Engine Cooling
POTENTIAL NUMBER OF UNITS AFFECTED: 547
SUMMARY:
General Motors is recalling certain model year 2010 Cadillac SRX equipped with a 2.8L V6 engine. If low octane (regular) fuel is used in the
vehicle instead of the required high octane (premium) fuel as stated in the owner manual and on the fuel filler door, the combination of regular fuel
usage and aggressive driving maneuvers may induce pre-ignition. If pre-ignition occurs, you may hear a pinging or knocking sound from the
engine.
CONSEQUENCE:
If the vehicle continues to be driven after the onset of this noise, a connecting rod or piston may break, resulting in engine damage, and perhaps
engine failure, which would disable the vehicle increasing the risk of a crash.
REMEDY:
Dealers will reprogram the engine control module free of charge. The safety recall is expected to begin on or before June 11, 2010. Owners may
contact The Cadillac Customer Assistance Center at 1-866-982-2339 or at The Owner Center at www.gmownercenter.com.
NOTES:
Owners may also contact The National Highway Traffic Safety Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY
Showing posts with label Cadillac Truck. Show all posts
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Friday, December 20, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 999
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 999
* Ignition ON.
* Ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
The EBCM detects an internal malfunction.
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS), traction control and the vehicle stability enhancement system for the duration of the
ignition cycle.
* A driver information center message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.
* Terminal 13
* Terminal 38
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.
* Terminal 1
* Terminal 25
瀚慖f the test lamp does not illuminate, test the appropriate circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
* Ignition ON.
* Ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
The EBCM detects an internal malfunction.
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS), traction control and the vehicle stability enhancement system for the duration of the
ignition cycle.
* A driver information center message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.
* Terminal 13
* Terminal 38
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.
* Terminal 1
* Terminal 25
瀚慖f the test lamp does not illuminate, test the appropriate circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 998
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 998
DTC C12D0
- ABS Left Rear Dump Solenoid valve Circuit Open
DTC C12D1
- ABS Left Rear Dump Solenoid Valve Circuit Shorted
DTC C12D2
- ABS Left Rear Dump Solenoid Valve Driver Shorted
DTC C12D3
- ABS Right Rear Dump Solenoid Valve Circuit Open
DTC C12D4
- ABS Right Rear Dump Solenoid Valve Circuit Shorted
DTC C12D5
- ABS Right Rear Dump Solenoid Driver Shorted
DTC C12D6
- ABS Base Brake Open Solenoid Circuit Open
DTC C12D7
- ABS Base Brake Open Solenoid Circuit Shorted
DTC C12D8
- ABS Base Brake Open Solenoid Driver Shorted
DTC C12D9
- ABS Base Brake Closed Solenoid Circuit Open
DTC C12DA
- ABS Base Brake Closed Solenoid Circuit Shorted
DTC C12DB
- ABS Base Brake Closed Solenoid Driver Shorted
DTC C12DC
- ABS Boost Valve Solenoid Circuit Open
DTC C12DD
- ABS Boost Valve Isolation Solenoid Driver Shorted
DTC C12DE
- ABS Proportioning Valve Solenoid Circuit Open
DTC C12DF
- ABS Proportioning Valve Solenoid Driver Shorted
DTC C12F2
- ABS Left Rear Isolation Solenoid Valve Circuit Shorted
DTC C12F3
- ABS Left Rear Isolation Solenoid Circuit Performance
DTC C12F4
- ABS Proportioning Valve Solenoid Performance
DTC C12F5
- ABS Right Rear Isolation Solenoid Circuit Shorted
DTC C12F6
- ABS Right Rear Isolation Solenoid Performance
Circuit/System Description
The electronic brake control module (EBCM) detects an internal malfunction.
Conditions for Running the DTC
DTC C12D0
- ABS Left Rear Dump Solenoid valve Circuit Open
DTC C12D1
- ABS Left Rear Dump Solenoid Valve Circuit Shorted
DTC C12D2
- ABS Left Rear Dump Solenoid Valve Driver Shorted
DTC C12D3
- ABS Right Rear Dump Solenoid Valve Circuit Open
DTC C12D4
- ABS Right Rear Dump Solenoid Valve Circuit Shorted
DTC C12D5
- ABS Right Rear Dump Solenoid Driver Shorted
DTC C12D6
- ABS Base Brake Open Solenoid Circuit Open
DTC C12D7
- ABS Base Brake Open Solenoid Circuit Shorted
DTC C12D8
- ABS Base Brake Open Solenoid Driver Shorted
DTC C12D9
- ABS Base Brake Closed Solenoid Circuit Open
DTC C12DA
- ABS Base Brake Closed Solenoid Circuit Shorted
DTC C12DB
- ABS Base Brake Closed Solenoid Driver Shorted
DTC C12DC
- ABS Boost Valve Solenoid Circuit Open
DTC C12DD
- ABS Boost Valve Isolation Solenoid Driver Shorted
DTC C12DE
- ABS Proportioning Valve Solenoid Circuit Open
DTC C12DF
- ABS Proportioning Valve Solenoid Driver Shorted
DTC C12F2
- ABS Left Rear Isolation Solenoid Valve Circuit Shorted
DTC C12F3
- ABS Left Rear Isolation Solenoid Circuit Performance
DTC C12F4
- ABS Proportioning Valve Solenoid Performance
DTC C12F5
- ABS Right Rear Isolation Solenoid Circuit Shorted
DTC C12F6
- ABS Right Rear Isolation Solenoid Performance
Circuit/System Description
The electronic brake control module (EBCM) detects an internal malfunction.
Conditions for Running the DTC
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 997
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 997
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
DTC C121E
- EBCM Unimplemented Interrupt
DTC C121F
- EBCM Unexpected Exception
DTC C123A
- EBCM High End Timer Watchdog
DTC C123B
- EBCM High End Timer Program Overflow
DTC C123C
- EBCM High End Timer RAM Fault
DTC C123D
- EBCM Solenoid Timeout
DTC C123E
- EBCM High End Timer Periodic Interrupt
DTC C123F
- EBCM Serial Peripheral Interface Inoperative
DTC C1255
- Electronic Control Unit Performance
DTC C1256
- Program ROM Checksum Error
DTC C126E
- EBCM Stack Overrun
DTC C126F
- EBCM Serial Peripheral Interface Performance
DTC C127C
- EBCM Self Test Failed
DTC C127E
- EBCM Module High Temperature
DTC C12A7
- ABS Boost Valve Solenoid Circuit Performance
DTC C12C2
- ABS Left Front Isolation Solenoid Valve Driver Shorted
DTC C12C5
- ABS Right Front Isolation Solenoid Valve Diver Shorted
DTC C12C6
- ABS Left Rear Isolation Solenoid Valve Circuit Failure
DTC C12C8
- ABS Right Rear Isolation Solenoid Valve Circuit Failure
DTC C12CC
- ABS Left Front Dump Solenoid Valve Driver Shorted
DTC C12CF
- ABS Right Front Dump Solenoid Valve Driver Shorted
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
DTC C121E
- EBCM Unimplemented Interrupt
DTC C121F
- EBCM Unexpected Exception
DTC C123A
- EBCM High End Timer Watchdog
DTC C123B
- EBCM High End Timer Program Overflow
DTC C123C
- EBCM High End Timer RAM Fault
DTC C123D
- EBCM Solenoid Timeout
DTC C123E
- EBCM High End Timer Periodic Interrupt
DTC C123F
- EBCM Serial Peripheral Interface Inoperative
DTC C1255
- Electronic Control Unit Performance
DTC C1256
- Program ROM Checksum Error
DTC C126E
- EBCM Stack Overrun
DTC C126F
- EBCM Serial Peripheral Interface Performance
DTC C127C
- EBCM Self Test Failed
DTC C127E
- EBCM Module High Temperature
DTC C12A7
- ABS Boost Valve Solenoid Circuit Performance
DTC C12C2
- ABS Left Front Isolation Solenoid Valve Driver Shorted
DTC C12C5
- ABS Right Front Isolation Solenoid Valve Diver Shorted
DTC C12C6
- ABS Left Rear Isolation Solenoid Valve Circuit Failure
DTC C12C8
- ABS Right Rear Isolation Solenoid Valve Circuit Failure
DTC C12CC
- ABS Left Front Dump Solenoid Valve Driver Shorted
DTC C12CF
- ABS Right Front Dump Solenoid Valve Driver Shorted
Thursday, December 19, 2019
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 996
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 996
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.
* Terminal 13
* Terminal 38
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.
* Terminal 1
* Terminal 25
瀚慖f the test lamp does not illuminate, test the appropriate circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
C123E
DTC C056D, C120C, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.
* Terminal 13
* Terminal 38
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.
* Terminal 1
* Terminal 25
瀚慖f the test lamp does not illuminate, test the appropriate circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
C123E
DTC C056D, C120C, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
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2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 995
DTC C12D8
- ABS Base Brake Open Solenoid Driver Shorted
DTC C12D9
- ABS Base Brake Closed Solenoid Circuit Open
DTC C12DA
- ABS Base Brake Closed Solenoid Circuit Shorted
DTC C12DB
- ABS Base Brake Closed Solenoid Driver Shorted
DTC C12DC
- ABS Boost Valve Solenoid Circuit Open
DTC C12DD
- ABS Boost Valve Isolation Solenoid Driver Shorted
DTC C12DE
- ABS Proportioning Valve Solenoid Circuit Open
DTC C12DF
- ABS Proportioning Valve Solenoid Driver Shorted
DTC C12F2
- ABS Left Rear Isolation Solenoid Valve Circuit Shorted
DTC C12F3
- ABS Left Rear Isolation Solenoid Circuit Performance
DTC C12F4
- ABS Proportioning Valve Solenoid Performance
DTC C12F5
- ABS Right Rear Isolation Solenoid Circuit Shorted
DTC C12F6
- ABS Right Rear Isolation Solenoid Performance
Circuit/System Description
The electronic brake control module (EBCM) detects an internal malfunction.
Conditions for Running the DTC
* Ignition ON.
* Ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
The EBCM detects an internal malfunction.
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS), traction control and the vehicle stability enhancement system for the duration of the
ignition cycle.
* A driver information center message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
DTC C12D8
- ABS Base Brake Open Solenoid Driver Shorted
DTC C12D9
- ABS Base Brake Closed Solenoid Circuit Open
DTC C12DA
- ABS Base Brake Closed Solenoid Circuit Shorted
DTC C12DB
- ABS Base Brake Closed Solenoid Driver Shorted
DTC C12DC
- ABS Boost Valve Solenoid Circuit Open
DTC C12DD
- ABS Boost Valve Isolation Solenoid Driver Shorted
DTC C12DE
- ABS Proportioning Valve Solenoid Circuit Open
DTC C12DF
- ABS Proportioning Valve Solenoid Driver Shorted
DTC C12F2
- ABS Left Rear Isolation Solenoid Valve Circuit Shorted
DTC C12F3
- ABS Left Rear Isolation Solenoid Circuit Performance
DTC C12F4
- ABS Proportioning Valve Solenoid Performance
DTC C12F5
- ABS Right Rear Isolation Solenoid Circuit Shorted
DTC C12F6
- ABS Right Rear Isolation Solenoid Performance
Circuit/System Description
The electronic brake control module (EBCM) detects an internal malfunction.
Conditions for Running the DTC
* Ignition ON.
* Ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
The EBCM detects an internal malfunction.
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS), traction control and the vehicle stability enhancement system for the duration of the
ignition cycle.
* A driver information center message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 994
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 994
- EBCM Solenoid Timeout
DTC C123E
- EBCM High End Timer Periodic Interrupt
DTC C123F
- EBCM Serial Peripheral Interface Inoperative
DTC C1255
- Electronic Control Unit Performance
DTC C1256
- Program ROM Checksum Error
DTC C126E
- EBCM Stack Overrun
DTC C126F
- EBCM Serial Peripheral Interface Performance
DTC C127C
- EBCM Self Test Failed
DTC C127E
- EBCM Module High Temperature
DTC C12A7
- ABS Boost Valve Solenoid Circuit Performance
DTC C12C2
- ABS Left Front Isolation Solenoid Valve Driver Shorted
DTC C12C5
- ABS Right Front Isolation Solenoid Valve Diver Shorted
DTC C12C6
- ABS Left Rear Isolation Solenoid Valve Circuit Failure
DTC C12C8
- ABS Right Rear Isolation Solenoid Valve Circuit Failure
DTC C12CC
- ABS Left Front Dump Solenoid Valve Driver Shorted
DTC C12CF
- ABS Right Front Dump Solenoid Valve Driver Shorted
DTC C12D0
- ABS Left Rear Dump Solenoid valve Circuit Open
DTC C12D1
- ABS Left Rear Dump Solenoid Valve Circuit Shorted
DTC C12D2
- ABS Left Rear Dump Solenoid Valve Driver Shorted
DTC C12D3
- ABS Right Rear Dump Solenoid Valve Circuit Open
DTC C12D4
- ABS Right Rear Dump Solenoid Valve Circuit Shorted
DTC C12D5
- ABS Right Rear Dump Solenoid Driver Shorted
DTC C12D6
- ABS Base Brake Open Solenoid Circuit Open
DTC C12D7
- ABS Base Brake Open Solenoid Circuit Shorted
- EBCM Solenoid Timeout
DTC C123E
- EBCM High End Timer Periodic Interrupt
DTC C123F
- EBCM Serial Peripheral Interface Inoperative
DTC C1255
- Electronic Control Unit Performance
DTC C1256
- Program ROM Checksum Error
DTC C126E
- EBCM Stack Overrun
DTC C126F
- EBCM Serial Peripheral Interface Performance
DTC C127C
- EBCM Self Test Failed
DTC C127E
- EBCM Module High Temperature
DTC C12A7
- ABS Boost Valve Solenoid Circuit Performance
DTC C12C2
- ABS Left Front Isolation Solenoid Valve Driver Shorted
DTC C12C5
- ABS Right Front Isolation Solenoid Valve Diver Shorted
DTC C12C6
- ABS Left Rear Isolation Solenoid Valve Circuit Failure
DTC C12C8
- ABS Right Rear Isolation Solenoid Valve Circuit Failure
DTC C12CC
- ABS Left Front Dump Solenoid Valve Driver Shorted
DTC C12CF
- ABS Right Front Dump Solenoid Valve Driver Shorted
DTC C12D0
- ABS Left Rear Dump Solenoid valve Circuit Open
DTC C12D1
- ABS Left Rear Dump Solenoid Valve Circuit Shorted
DTC C12D2
- ABS Left Rear Dump Solenoid Valve Driver Shorted
DTC C12D3
- ABS Right Rear Dump Solenoid Valve Circuit Open
DTC C12D4
- ABS Right Rear Dump Solenoid Valve Circuit Shorted
DTC C12D5
- ABS Right Rear Dump Solenoid Driver Shorted
DTC C12D6
- ABS Base Brake Open Solenoid Circuit Open
DTC C12D7
- ABS Base Brake Open Solenoid Circuit Shorted
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 993
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 993
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.
* Terminal 13
* Terminal 38
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.
* Terminal 1
* Terminal 25
瀚慖f the test lamp does not illuminate, test the appropriate circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
C123D
DTC C056D, C120C, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
DTC C121E
- EBCM Unimplemented Interrupt
DTC C121F
- EBCM Unexpected Exception
DTC C123A
- EBCM High End Timer Watchdog
DTC C123B
- EBCM High End Timer Program Overflow
DTC C123C
- EBCM High End Timer RAM Fault
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.
* Terminal 13
* Terminal 38
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.
* Terminal 1
* Terminal 25
瀚慖f the test lamp does not illuminate, test the appropriate circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
C123D
DTC C056D, C120C, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
DTC C121E
- EBCM Unimplemented Interrupt
DTC C121F
- EBCM Unexpected Exception
DTC C123A
- EBCM High End Timer Watchdog
DTC C123B
- EBCM High End Timer Program Overflow
DTC C123C
- EBCM High End Timer RAM Fault
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 992
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 992
DTC C12DF
- ABS Proportioning Valve Solenoid Driver Shorted
DTC C12F2
- ABS Left Rear Isolation Solenoid Valve Circuit Shorted
DTC C12F3
- ABS Left Rear Isolation Solenoid Circuit Performance
DTC C12F4
- ABS Proportioning Valve Solenoid Performance
DTC C12F5
- ABS Right Rear Isolation Solenoid Circuit Shorted
DTC C12F6
- ABS Right Rear Isolation Solenoid Performance
Circuit/System Description
The electronic brake control module (EBCM) detects an internal malfunction.
Conditions for Running the DTC
* Ignition ON.
* Ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
The EBCM detects an internal malfunction.
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS), traction control and the vehicle stability enhancement system for the duration of the
ignition cycle.
* A driver information center message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
DTC C12DF
- ABS Proportioning Valve Solenoid Driver Shorted
DTC C12F2
- ABS Left Rear Isolation Solenoid Valve Circuit Shorted
DTC C12F3
- ABS Left Rear Isolation Solenoid Circuit Performance
DTC C12F4
- ABS Proportioning Valve Solenoid Performance
DTC C12F5
- ABS Right Rear Isolation Solenoid Circuit Shorted
DTC C12F6
- ABS Right Rear Isolation Solenoid Performance
Circuit/System Description
The electronic brake control module (EBCM) detects an internal malfunction.
Conditions for Running the DTC
* Ignition ON.
* Ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
The EBCM detects an internal malfunction.
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS), traction control and the vehicle stability enhancement system for the duration of the
ignition cycle.
* A driver information center message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 991
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 991
- EBCM Self Test Failed
DTC C127E
- EBCM Module High Temperature
DTC C12A7
- ABS Boost Valve Solenoid Circuit Performance
DTC C12C2
- ABS Left Front Isolation Solenoid Valve Driver Shorted
DTC C12C5
- ABS Right Front Isolation Solenoid Valve Diver Shorted
DTC C12C6
- ABS Left Rear Isolation Solenoid Valve Circuit Failure
DTC C12C8
- ABS Right Rear Isolation Solenoid Valve Circuit Failure
DTC C12CC
- ABS Left Front Dump Solenoid Valve Driver Shorted
DTC C12CF
- ABS Right Front Dump Solenoid Valve Driver Shorted
DTC C12D0
- ABS Left Rear Dump Solenoid valve Circuit Open
DTC C12D1
- ABS Left Rear Dump Solenoid Valve Circuit Shorted
DTC C12D2
- ABS Left Rear Dump Solenoid Valve Driver Shorted
DTC C12D3
- ABS Right Rear Dump Solenoid Valve Circuit Open
DTC C12D4
- ABS Right Rear Dump Solenoid Valve Circuit Shorted
DTC C12D5
- ABS Right Rear Dump Solenoid Driver Shorted
DTC C12D6
- ABS Base Brake Open Solenoid Circuit Open
DTC C12D7
- ABS Base Brake Open Solenoid Circuit Shorted
DTC C12D8
- ABS Base Brake Open Solenoid Driver Shorted
DTC C12D9
- ABS Base Brake Closed Solenoid Circuit Open
DTC C12DA
- ABS Base Brake Closed Solenoid Circuit Shorted
DTC C12DB
- ABS Base Brake Closed Solenoid Driver Shorted
DTC C12DC
- ABS Boost Valve Solenoid Circuit Open
DTC C12DD
- ABS Boost Valve Isolation Solenoid Driver Shorted
DTC C12DE
- ABS Proportioning Valve Solenoid Circuit Open
- EBCM Self Test Failed
DTC C127E
- EBCM Module High Temperature
DTC C12A7
- ABS Boost Valve Solenoid Circuit Performance
DTC C12C2
- ABS Left Front Isolation Solenoid Valve Driver Shorted
DTC C12C5
- ABS Right Front Isolation Solenoid Valve Diver Shorted
DTC C12C6
- ABS Left Rear Isolation Solenoid Valve Circuit Failure
DTC C12C8
- ABS Right Rear Isolation Solenoid Valve Circuit Failure
DTC C12CC
- ABS Left Front Dump Solenoid Valve Driver Shorted
DTC C12CF
- ABS Right Front Dump Solenoid Valve Driver Shorted
DTC C12D0
- ABS Left Rear Dump Solenoid valve Circuit Open
DTC C12D1
- ABS Left Rear Dump Solenoid Valve Circuit Shorted
DTC C12D2
- ABS Left Rear Dump Solenoid Valve Driver Shorted
DTC C12D3
- ABS Right Rear Dump Solenoid Valve Circuit Open
DTC C12D4
- ABS Right Rear Dump Solenoid Valve Circuit Shorted
DTC C12D5
- ABS Right Rear Dump Solenoid Driver Shorted
DTC C12D6
- ABS Base Brake Open Solenoid Circuit Open
DTC C12D7
- ABS Base Brake Open Solenoid Circuit Shorted
DTC C12D8
- ABS Base Brake Open Solenoid Driver Shorted
DTC C12D9
- ABS Base Brake Closed Solenoid Circuit Open
DTC C12DA
- ABS Base Brake Closed Solenoid Circuit Shorted
DTC C12DB
- ABS Base Brake Closed Solenoid Driver Shorted
DTC C12DC
- ABS Boost Valve Solenoid Circuit Open
DTC C12DD
- ABS Boost Valve Isolation Solenoid Driver Shorted
DTC C12DE
- ABS Proportioning Valve Solenoid Circuit Open
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 990
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 990
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
C123C
DTC C056D, C120C, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
DTC C121E
- EBCM Unimplemented Interrupt
DTC C121F
- EBCM Unexpected Exception
DTC C123A
- EBCM High End Timer Watchdog
DTC C123B
- EBCM High End Timer Program Overflow
DTC C123C
- EBCM High End Timer RAM Fault
DTC C123D
- EBCM Solenoid Timeout
DTC C123E
- EBCM High End Timer Periodic Interrupt
DTC C123F
- EBCM Serial Peripheral Interface Inoperative
DTC C1255
- Electronic Control Unit Performance
DTC C1256
- Program ROM Checksum Error
DTC C126E
- EBCM Stack Overrun
DTC C126F
- EBCM Serial Peripheral Interface Performance
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
C123C
DTC C056D, C120C, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
DTC C121E
- EBCM Unimplemented Interrupt
DTC C121F
- EBCM Unexpected Exception
DTC C123A
- EBCM High End Timer Watchdog
DTC C123B
- EBCM High End Timer Program Overflow
DTC C123C
- EBCM High End Timer RAM Fault
DTC C123D
- EBCM Solenoid Timeout
DTC C123E
- EBCM High End Timer Periodic Interrupt
DTC C123F
- EBCM Serial Peripheral Interface Inoperative
DTC C1255
- Electronic Control Unit Performance
DTC C1256
- Program ROM Checksum Error
DTC C126E
- EBCM Stack Overrun
DTC C126F
- EBCM Serial Peripheral Interface Performance
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 99
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 99
DTC B0021 04
- Passenger Side Seat Air Bag Deployment Loop Open Circuit
DTC B0021 0D
- Passenger Side Seat Air Bag Deployment Loop Resistance Above Threshold
DTC B0021 0E
- Passenger Side Seat Air Bag Deployment Loop Resistance Below Threshold
DTC B0022 01
- RF Pretensioner Deployment Loop Short to Battery
DTC B0022 02
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Short to Ground
DTC B0022 04
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Open Circuit
DTC B0022 0D
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Resistance Above Threshold
DTC B0022 0E
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Resistance Below Threshold
DTC B0023 01
- Right Roof Rail Air Bag Deployment Loop Short to Battery
DTC B0023 02
- Right Roof Rail Air Bag Deployment Loop Short to Ground
DTC B0023 04
- Right Roof Rail Air Bag Deployment Loop Open Circuit
DTC B0023 0D
- Right Roof Rail Air Bag Deployment Loop Resistance Above Threshold
DTC B0023 0E
- Right Roof Rail Air Bag Deployment Loop Resistance Below Threshold
Diagnostic Fault Information
DTC B0021 04
- Passenger Side Seat Air Bag Deployment Loop Open Circuit
DTC B0021 0D
- Passenger Side Seat Air Bag Deployment Loop Resistance Above Threshold
DTC B0021 0E
- Passenger Side Seat Air Bag Deployment Loop Resistance Below Threshold
DTC B0022 01
- RF Pretensioner Deployment Loop Short to Battery
DTC B0022 02
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Short to Ground
DTC B0022 04
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Open Circuit
DTC B0022 0D
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Resistance Above Threshold
DTC B0022 0E
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Resistance Below Threshold
DTC B0023 01
- Right Roof Rail Air Bag Deployment Loop Short to Battery
DTC B0023 02
- Right Roof Rail Air Bag Deployment Loop Short to Ground
DTC B0023 04
- Right Roof Rail Air Bag Deployment Loop Open Circuit
DTC B0023 0D
- Right Roof Rail Air Bag Deployment Loop Resistance Above Threshold
DTC B0023 0E
- Right Roof Rail Air Bag Deployment Loop Resistance Below Threshold
Diagnostic Fault Information
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 989
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 989
Conditions for Running the DTC
* Ignition ON.
* Ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
The EBCM detects an internal malfunction.
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS), traction control and the vehicle stability enhancement system for the duration of the
ignition cycle.
* A driver information center message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.
* Terminal 13
* Terminal 38
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.
* Terminal 1
* Terminal 25
瀚慖f the test lamp does not illuminate, test the appropriate circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Conditions for Running the DTC
* Ignition ON.
* Ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
The EBCM detects an internal malfunction.
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS), traction control and the vehicle stability enhancement system for the duration of the
ignition cycle.
* A driver information center message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.
* Terminal 13
* Terminal 38
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.
* Terminal 1
* Terminal 25
瀚慖f the test lamp does not illuminate, test the appropriate circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 988
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 988
DTC C12CF
- ABS Right Front Dump Solenoid Valve Driver Shorted
DTC C12D0
- ABS Left Rear Dump Solenoid valve Circuit Open
DTC C12D1
- ABS Left Rear Dump Solenoid Valve Circuit Shorted
DTC C12D2
- ABS Left Rear Dump Solenoid Valve Driver Shorted
DTC C12D3
- ABS Right Rear Dump Solenoid Valve Circuit Open
DTC C12D4
- ABS Right Rear Dump Solenoid Valve Circuit Shorted
DTC C12D5
- ABS Right Rear Dump Solenoid Driver Shorted
DTC C12D6
- ABS Base Brake Open Solenoid Circuit Open
DTC C12D7
- ABS Base Brake Open Solenoid Circuit Shorted
DTC C12D8
- ABS Base Brake Open Solenoid Driver Shorted
DTC C12D9
- ABS Base Brake Closed Solenoid Circuit Open
DTC C12DA
- ABS Base Brake Closed Solenoid Circuit Shorted
DTC C12DB
- ABS Base Brake Closed Solenoid Driver Shorted
DTC C12DC
- ABS Boost Valve Solenoid Circuit Open
DTC C12DD
- ABS Boost Valve Isolation Solenoid Driver Shorted
DTC C12DE
- ABS Proportioning Valve Solenoid Circuit Open
DTC C12DF
- ABS Proportioning Valve Solenoid Driver Shorted
DTC C12F2
- ABS Left Rear Isolation Solenoid Valve Circuit Shorted
DTC C12F3
- ABS Left Rear Isolation Solenoid Circuit Performance
DTC C12F4
- ABS Proportioning Valve Solenoid Performance
DTC C12F5
- ABS Right Rear Isolation Solenoid Circuit Shorted
DTC C12F6
- ABS Right Rear Isolation Solenoid Performance
Circuit/System Description
The electronic brake control module (EBCM) detects an internal malfunction.
DTC C12CF
- ABS Right Front Dump Solenoid Valve Driver Shorted
DTC C12D0
- ABS Left Rear Dump Solenoid valve Circuit Open
DTC C12D1
- ABS Left Rear Dump Solenoid Valve Circuit Shorted
DTC C12D2
- ABS Left Rear Dump Solenoid Valve Driver Shorted
DTC C12D3
- ABS Right Rear Dump Solenoid Valve Circuit Open
DTC C12D4
- ABS Right Rear Dump Solenoid Valve Circuit Shorted
DTC C12D5
- ABS Right Rear Dump Solenoid Driver Shorted
DTC C12D6
- ABS Base Brake Open Solenoid Circuit Open
DTC C12D7
- ABS Base Brake Open Solenoid Circuit Shorted
DTC C12D8
- ABS Base Brake Open Solenoid Driver Shorted
DTC C12D9
- ABS Base Brake Closed Solenoid Circuit Open
DTC C12DA
- ABS Base Brake Closed Solenoid Circuit Shorted
DTC C12DB
- ABS Base Brake Closed Solenoid Driver Shorted
DTC C12DC
- ABS Boost Valve Solenoid Circuit Open
DTC C12DD
- ABS Boost Valve Isolation Solenoid Driver Shorted
DTC C12DE
- ABS Proportioning Valve Solenoid Circuit Open
DTC C12DF
- ABS Proportioning Valve Solenoid Driver Shorted
DTC C12F2
- ABS Left Rear Isolation Solenoid Valve Circuit Shorted
DTC C12F3
- ABS Left Rear Isolation Solenoid Circuit Performance
DTC C12F4
- ABS Proportioning Valve Solenoid Performance
DTC C12F5
- ABS Right Rear Isolation Solenoid Circuit Shorted
DTC C12F6
- ABS Right Rear Isolation Solenoid Performance
Circuit/System Description
The electronic brake control module (EBCM) detects an internal malfunction.
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 987
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 987
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
DTC C121E
- EBCM Unimplemented Interrupt
DTC C121F
- EBCM Unexpected Exception
DTC C123A
- EBCM High End Timer Watchdog
DTC C123B
- EBCM High End Timer Program Overflow
DTC C123C
- EBCM High End Timer RAM Fault
DTC C123D
- EBCM Solenoid Timeout
DTC C123E
- EBCM High End Timer Periodic Interrupt
DTC C123F
- EBCM Serial Peripheral Interface Inoperative
DTC C1255
- Electronic Control Unit Performance
DTC C1256
- Program ROM Checksum Error
DTC C126E
- EBCM Stack Overrun
DTC C126F
- EBCM Serial Peripheral Interface Performance
DTC C127C
- EBCM Self Test Failed
DTC C127E
- EBCM Module High Temperature
DTC C12A7
- ABS Boost Valve Solenoid Circuit Performance
DTC C12C2
- ABS Left Front Isolation Solenoid Valve Driver Shorted
DTC C12C5
- ABS Right Front Isolation Solenoid Valve Diver Shorted
DTC C12C6
- ABS Left Rear Isolation Solenoid Valve Circuit Failure
DTC C12C8
- ABS Right Rear Isolation Solenoid Valve Circuit Failure
DTC C12CC
- ABS Left Front Dump Solenoid Valve Driver Shorted
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
DTC C121E
- EBCM Unimplemented Interrupt
DTC C121F
- EBCM Unexpected Exception
DTC C123A
- EBCM High End Timer Watchdog
DTC C123B
- EBCM High End Timer Program Overflow
DTC C123C
- EBCM High End Timer RAM Fault
DTC C123D
- EBCM Solenoid Timeout
DTC C123E
- EBCM High End Timer Periodic Interrupt
DTC C123F
- EBCM Serial Peripheral Interface Inoperative
DTC C1255
- Electronic Control Unit Performance
DTC C1256
- Program ROM Checksum Error
DTC C126E
- EBCM Stack Overrun
DTC C126F
- EBCM Serial Peripheral Interface Performance
DTC C127C
- EBCM Self Test Failed
DTC C127E
- EBCM Module High Temperature
DTC C12A7
- ABS Boost Valve Solenoid Circuit Performance
DTC C12C2
- ABS Left Front Isolation Solenoid Valve Driver Shorted
DTC C12C5
- ABS Right Front Isolation Solenoid Valve Diver Shorted
DTC C12C6
- ABS Left Rear Isolation Solenoid Valve Circuit Failure
DTC C12C8
- ABS Right Rear Isolation Solenoid Valve Circuit Failure
DTC C12CC
- ABS Left Front Dump Solenoid Valve Driver Shorted
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 986
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 986
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.
* Terminal 13
* Terminal 38
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.
* Terminal 1
* Terminal 25
瀚慖f the test lamp does not illuminate, test the appropriate circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
C123B
DTC C056D, C120C, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Test for less than 1 ohm between the ground circuits listed below and ground.
* Terminal 13
* Terminal 38
瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify that a test lamp illuminates between the B+ circuits listed below and ground.
* Terminal 1
* Terminal 25
瀚慖f the test lamp does not illuminate, test the appropriate circuit for a short to ground or an open/high resistance.
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
C123B
DTC C056D, C120C, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 985
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 985
DTC C12D7
- ABS Base Brake Open Solenoid Circuit Shorted
DTC C12D8
- ABS Base Brake Open Solenoid Driver Shorted
DTC C12D9
- ABS Base Brake Closed Solenoid Circuit Open
DTC C12DA
- ABS Base Brake Closed Solenoid Circuit Shorted
DTC C12DB
- ABS Base Brake Closed Solenoid Driver Shorted
DTC C12DC
- ABS Boost Valve Solenoid Circuit Open
DTC C12DD
- ABS Boost Valve Isolation Solenoid Driver Shorted
DTC C12DE
- ABS Proportioning Valve Solenoid Circuit Open
DTC C12DF
- ABS Proportioning Valve Solenoid Driver Shorted
DTC C12F2
- ABS Left Rear Isolation Solenoid Valve Circuit Shorted
DTC C12F3
- ABS Left Rear Isolation Solenoid Circuit Performance
DTC C12F4
- ABS Proportioning Valve Solenoid Performance
DTC C12F5
- ABS Right Rear Isolation Solenoid Circuit Shorted
DTC C12F6
- ABS Right Rear Isolation Solenoid Performance
Circuit/System Description
The electronic brake control module (EBCM) detects an internal malfunction.
Conditions for Running the DTC
* Ignition ON.
* Ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
The EBCM detects an internal malfunction.
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS), traction control and the vehicle stability enhancement system for the duration of the
ignition cycle.
* A driver information center message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
DTC C12D7
- ABS Base Brake Open Solenoid Circuit Shorted
DTC C12D8
- ABS Base Brake Open Solenoid Driver Shorted
DTC C12D9
- ABS Base Brake Closed Solenoid Circuit Open
DTC C12DA
- ABS Base Brake Closed Solenoid Circuit Shorted
DTC C12DB
- ABS Base Brake Closed Solenoid Driver Shorted
DTC C12DC
- ABS Boost Valve Solenoid Circuit Open
DTC C12DD
- ABS Boost Valve Isolation Solenoid Driver Shorted
DTC C12DE
- ABS Proportioning Valve Solenoid Circuit Open
DTC C12DF
- ABS Proportioning Valve Solenoid Driver Shorted
DTC C12F2
- ABS Left Rear Isolation Solenoid Valve Circuit Shorted
DTC C12F3
- ABS Left Rear Isolation Solenoid Circuit Performance
DTC C12F4
- ABS Proportioning Valve Solenoid Performance
DTC C12F5
- ABS Right Rear Isolation Solenoid Circuit Shorted
DTC C12F6
- ABS Right Rear Isolation Solenoid Performance
Circuit/System Description
The electronic brake control module (EBCM) detects an internal malfunction.
Conditions for Running the DTC
* Ignition ON.
* Ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
The EBCM detects an internal malfunction.
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS), traction control and the vehicle stability enhancement system for the duration of the
ignition cycle.
* A driver information center message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 984
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 984
- EBCM High End Timer RAM Fault
DTC C123D
- EBCM Solenoid Timeout
DTC C123E
- EBCM High End Timer Periodic Interrupt
DTC C123F
- EBCM Serial Peripheral Interface Inoperative
DTC C1255
- Electronic Control Unit Performance
DTC C1256
- Program ROM Checksum Error
DTC C126E
- EBCM Stack Overrun
DTC C126F
- EBCM Serial Peripheral Interface Performance
DTC C127C
- EBCM Self Test Failed
DTC C127E
- EBCM Module High Temperature
DTC C12A7
- ABS Boost Valve Solenoid Circuit Performance
DTC C12C2
- ABS Left Front Isolation Solenoid Valve Driver Shorted
DTC C12C5
- ABS Right Front Isolation Solenoid Valve Diver Shorted
DTC C12C6
- ABS Left Rear Isolation Solenoid Valve Circuit Failure
DTC C12C8
- ABS Right Rear Isolation Solenoid Valve Circuit Failure
DTC C12CC
- ABS Left Front Dump Solenoid Valve Driver Shorted
DTC C12CF
- ABS Right Front Dump Solenoid Valve Driver Shorted
DTC C12D0
- ABS Left Rear Dump Solenoid valve Circuit Open
DTC C12D1
- ABS Left Rear Dump Solenoid Valve Circuit Shorted
DTC C12D2
- ABS Left Rear Dump Solenoid Valve Driver Shorted
DTC C12D3
- ABS Right Rear Dump Solenoid Valve Circuit Open
DTC C12D4
- ABS Right Rear Dump Solenoid Valve Circuit Shorted
DTC C12D5
- ABS Right Rear Dump Solenoid Driver Shorted
DTC C12D6
- ABS Base Brake Open Solenoid Circuit Open
- EBCM High End Timer RAM Fault
DTC C123D
- EBCM Solenoid Timeout
DTC C123E
- EBCM High End Timer Periodic Interrupt
DTC C123F
- EBCM Serial Peripheral Interface Inoperative
DTC C1255
- Electronic Control Unit Performance
DTC C1256
- Program ROM Checksum Error
DTC C126E
- EBCM Stack Overrun
DTC C126F
- EBCM Serial Peripheral Interface Performance
DTC C127C
- EBCM Self Test Failed
DTC C127E
- EBCM Module High Temperature
DTC C12A7
- ABS Boost Valve Solenoid Circuit Performance
DTC C12C2
- ABS Left Front Isolation Solenoid Valve Driver Shorted
DTC C12C5
- ABS Right Front Isolation Solenoid Valve Diver Shorted
DTC C12C6
- ABS Left Rear Isolation Solenoid Valve Circuit Failure
DTC C12C8
- ABS Right Rear Isolation Solenoid Valve Circuit Failure
DTC C12CC
- ABS Left Front Dump Solenoid Valve Driver Shorted
DTC C12CF
- ABS Right Front Dump Solenoid Valve Driver Shorted
DTC C12D0
- ABS Left Rear Dump Solenoid valve Circuit Open
DTC C12D1
- ABS Left Rear Dump Solenoid Valve Circuit Shorted
DTC C12D2
- ABS Left Rear Dump Solenoid Valve Driver Shorted
DTC C12D3
- ABS Right Rear Dump Solenoid Valve Circuit Open
DTC C12D4
- ABS Right Rear Dump Solenoid Valve Circuit Shorted
DTC C12D5
- ABS Right Rear Dump Solenoid Driver Shorted
DTC C12D6
- ABS Base Brake Open Solenoid Circuit Open
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 983
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 983
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Inspect for one tire that has improper air pressure or improper size.
C123A
DTC C056D, C120C, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
DTC C121E
- EBCM Unimplemented Interrupt
DTC C121F
- EBCM Unexpected Exception
DTC C123A
- EBCM High End Timer Watchdog
DTC C123B
- EBCM High End Timer Program Overflow
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Inspect for one tire that has improper air pressure or improper size.
C123A
DTC C056D, C120C, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C056D 00
- ECU Hardware Performance
DTC C056D 3C
- ECU Hardware Performance Internal Communications Failure
DTC C056D 59
- ECU Hardware Performance
DTC C120C
- Brake Pedal Position Sensor 4 Plausibility
DTC C121C
- EBCM Internal Communication Error
DTC C121E
- EBCM Unimplemented Interrupt
DTC C121F
- EBCM Unexpected Exception
DTC C123A
- EBCM High End Timer Watchdog
DTC C123B
- EBCM High End Timer Program Overflow
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 982
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 982
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
C122E
DTC C0245, C122E
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC C0245 00
- Wheel Speed Sensor Frequency Error
DTC C122E
- Wheel Speed Sensor Frequency Error
Circuit/System Description
As the wheel spins, the wheel speed sensor produces an AC signal. The electronic brake control module (EBCM) uses the frequency of the AC
signal to calculate the wheel speed.
Conditions for Running the DTC
* Ignition ON.
* Ignition voltage is greater than 10 volts.
* Vehicle must be moving at a speed less than 14.5 km/h (9 mph).
* No wheel speed sensor faults exist.
* Brake is not applied.
* Vehicle is not cornering.
* No wheel spinning is detected.
Conditions for Setting the DTC
Wheel speed differences between one wheel and the others is greater than 25 percent.
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS), traction control and the vehicle stability enhancement system (VSES) for the duration
of the ignition cycle.
* A DIC message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for setting the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Diagnostic Aids
* Faulty wheel speed sensor will not set this DTC.
* A vehicle using a space saver spare will not set this code.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
4. If all circuits test normal, replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming
C122E
DTC C0245, C122E
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC C0245 00
- Wheel Speed Sensor Frequency Error
DTC C122E
- Wheel Speed Sensor Frequency Error
Circuit/System Description
As the wheel spins, the wheel speed sensor produces an AC signal. The electronic brake control module (EBCM) uses the frequency of the AC
signal to calculate the wheel speed.
Conditions for Running the DTC
* Ignition ON.
* Ignition voltage is greater than 10 volts.
* Vehicle must be moving at a speed less than 14.5 km/h (9 mph).
* No wheel speed sensor faults exist.
* Brake is not applied.
* Vehicle is not cornering.
* No wheel spinning is detected.
Conditions for Setting the DTC
Wheel speed differences between one wheel and the others is greater than 25 percent.
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS), traction control and the vehicle stability enhancement system (VSES) for the duration
of the ignition cycle.
* A DIC message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for setting the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Diagnostic Aids
* Faulty wheel speed sensor will not set this DTC.
* A vehicle using a space saver spare will not set this code.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
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