Showing posts with label DTC Descriptors. Show all posts
Showing posts with label DTC Descriptors. Show all posts

Thursday, December 19, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 979

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 979

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

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

Sunday, December 15, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 894

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 894

DTC Descriptors

DTC C012E 00

- Hydraulic Brake Boost Pressure Loss

DTC C12FE 00

- ABS Pump Pressure Loss

Circuit/System Description

The electronic brake control module (EBCM) uses input from the boost pressure sensor for more accurate control during brake and vehicle stability

enhancement system event. The boost pressure sensor is internal to the brake pressure modulator valve. The boost control function will keep

operating amongst conditions that cause the boost pressure to be limited to less than commanded. The boost control continues to apply until the

boost pressure available is no greater than the master cylinder pressure the driver is applying.

Conditions for Running the DTC

* Engine Running

* Ignition voltage is greater than 10 volts.

* Transmission in Park

* Brake pedal was applied.

Conditions for Setting the DTC

* Boost pressure command greater than boost pressure +1500 kPa (217 psi) for 250 ms.

* Master cylinder pressure greater than boost pressure -200 kPa (29 psi) for 250 ms.

* Accumulator pressure greater than 16,000 kPa (2320 psi) for 250 ms.

* DTCs C12BC, C12BD, C12BE, C128A, C128D, C127D, C12E4, C1255, C1256, C126E, C123C, or C127C not set.

Action Taken When the DTC Sets

* The EBCM disables the ABS, traction control system 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 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

* Excessive brake pedal applies (10 or more applies in 30 seconds) can cause the DTC to set.

* The DTC can set if the ignition key is in the Accessory position, the brake pedal is applied and then the ignition key is turned ON.

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

Thursday, December 12, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 836

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 836

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

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

Saturday, December 7, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 728

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 728

DTC Descriptors

DTC B3821 00

- Left Rear Window Relay Power Circuit

DTC B3824 00

- Right Rear Window Relay Power Circuit

Diagnostic Fault Information

Circuit/System Description

The body control module (BCM) monitors the window lockout command from the driver door switch (DDS). When the rear window switch

operation is authorized, the the BCM signal voltage drops approximately 5 volts to the rear window switches allowing for normal window

operation from the rear switches. If the rear window lockout function is commanded, the BCM signal voltage is at B+ voltage which disables the

rear window switches and the rear windows will only operate when the BCM receives a command from the driver master control.

Conditions for Running the DTC

* Battery voltage is between 9-16 volts.

* The ignition is ON.

Conditions for Setting the DTC

B3821 00

The BCM detects a fault in the left rear window lockout circuit.

B3824 00

The BCM detects a fault in the right rear window lockout circuit.

Action Taken When the DTC Sets

The left or right rear power window will be inoperative.

Conditions for Clearing the DTC

Thursday, December 5, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 682

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 682

DTC Descriptors

DTC B3205 00

- Window Inactive Over Current Fault

DTC B3205 0B

- Window Motor Fast Over Current Fault

Diagnostic Fault Information

Circuit/System Description

The driver door switch (DDS) and passenger door switch (PDS) control the power window functions through the power window motor up and

down control circuits. The door switches monitor the control circuits for fault conditions when up or down operation is requested prior to activating

the function and during operation.

Conditions for Running the DTC

* Battery voltage must be between 9-16 volts.

* The ignition is ON.

Conditions for Setting the DTC

B3205 00

The DDS or PDS detects a short to ground or short to voltage on their respective window motor control circuit.

B3205 0B

The DDS or PDS has detected excessive current flow on their respective window motor control circuit.

Action Taken When the DTC Sets

The affected power window will be inoperative.

Conditions for Clearing the DTC

* The DTC will be current for as long as the fault is present.

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 674

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 674

DTC Descriptors

DTC B3109 00

- Keyless Entry Transmitter 1 Low Battery

DTC B3110 00

- Keyless Entry Transmitter 2 Low Battery

DTC B3111 00

- Keyless Entry Transmitter 3 Low Battery

DTC B3112 00

- Keyless Entry Transmitter 4 Low Battery

Circuit/System Description

With each press of a keyless entry transmitter button, a message containing the current battery state of the transmitter is sent to the remote control

door lock receiver (RCDLR) along with the commanded keyless entry function.

Conditions for Running the DTC

A keyless transmitter button is pressed.

Conditions for Setting the DTC

The DTC sets after 3 consecutive low battery signals from the same programmed transmitter.

Action Taken When the DTC Sets

The keyless entry system is inoperative.

Conditions for Clearing the DTC

The DTC is cleared when a normal transmitter voltage signal is received from the programmed transmitter that set the DTC.

Diagnostic Aids

The keyless entry transmitter used in the 2-Way Advanced Remote Start System is unique to the system. When servicing or replacing a transmitter,

ensure that the correct transmitter is used. The correct transmitter part number can be found in the Accessory section of the parts catalog.

Attempting to replace a 2-Way Advanced Remote Start transmitter with a regular service part may result in a failure to program the transmitter.

Reference Information

Schematic Reference

Remote Function Schematics (See: Accessories and Optional Equipment/Antitheft and Alarm Systems/Keyless Entry/Keyless Entry

Transmitter/Diagrams/Electrical Diagrams)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views)

Description and Operation

Keyless Entry System Description and Operation (Without Accessory 2 Way Remote) (See: Accessories and Optional Equipment/Antitheft and

Alarm Systems/Keyless Entry/Description and Operation/Keyless Entry System Description and Operation (Without Accessory 2 Way Remote)

)Keyless Entry System Description and Operation (With Accessory 2 Way Remote) (See: Accessories and Optional Equipment/Antitheft and

Alarm Systems/Keyless Entry/Description and Operation/Keyless Entry System Description and Operation (With Accessory 2 Way Remote))

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

Monday, December 2, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 612

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 612

DTC Descriptors

DTC B2508 01

- Seat Heater Relay Circuit Short to Battery

DTC B2508 02

- Seat Heater Relay Circuit Short to Ground

Diagnostic Fault Information

Circuit/System Description

The front seat heating elements are controlled by a common high current relay internal to the heated seat module (HSM) and on the low side by

individual element control circuits. The HSM connects the seat heater element supply voltage circuits to a common reference point. This reference

point is biased to approximately 2.5 V. Before the HSM will allow heated seat operation, it checks to see if the heating element supply voltage

circuits and control circuits are shorted to ground or battery voltage. Once the HSM verifies that it is not closing to a shorted heating element, it

allows heated seat operation. After which it continues to monitor for a shorted circuit.

Conditions for Running the DTC

The HSM must be powered.

Conditions for Setting the DTC

B2508 02

Before the heated seats are activated, the HSM detects a short to ground on the seat heating element supply voltage circuit or control circuit.

B2508 01

Before the heated seats are activated, the HSM detects a short to battery voltage on the seat heating element supply voltage circuit or control circuit.

Sunday, November 24, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 435

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 435

DTC Descriptors

DTC B1395 03

- Device Voltage Reference Output 1 Circuit Voltage Below Threshold

DTC B1395 07

- Device Voltage Reference Output 1 Circuit Voltage Above Threshold

Diagnostic Fault Information

Circuit/System Description

Voltage for the interior backlighting components and stop lamp switch activation signal is supplied from the body control module (BCM). The

BCM applies a voltage reference through the instrument panel (I/P) dimming voltage reference circuit to the interior lamp dimming switch, which is

part of the headlamp switch. When the dimming switch is placed in the desired position, the dimmed voltage setting is applied from the interior

lamp dimming switch through the I/P dimming control circuit to the BCM. The BCM then applies the dimmed voltage to the I/P lamps supply

voltage circuit and they dim to the correct level.

The stop lamp switch is also supplied voltage on the same circuit for a stop lamp OFF signal to the BCM. When the stop lamp switch is activated

the voltage signal circuit to the BCM is opened prompting the BCM to illuminate the stop lamps.

Conditions for Running the DTC

* Battery voltage must be between 9-16 V.

* Ignition must be ON.

Saturday, November 23, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 419

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 419

DTC Descriptors

DTC B1289 01

- Video Display Brightness Control Signal Short to Battery

DTC B1289 02

- Video Display Brightness Control Signal Short to Ground

DTC B1289 04

- Video Display Brightness Control Signal Open Circuit

Diagnostic Fault Information

Circuit/System Description

The radio can control the video display brightness on vehicles equipped with rear seat entertainment (RSE) video. The radio varies a pulse with

modulated (PWM) signal to the rear entertainment video screen to command the screen brightness to the desired level.

Conditions for Running the DTC

* Ignition ON.

* Battery voltage must be between 9-16 volts.

Conditions for Setting the DTC

The DTC will set when the radio detects a short to voltage, short to ground, or an open/high resistance in the video display brightness control

circuit 400 ms after the radio activates the remote enable circuit.

Action Taken When the DTC Sets

The radio sets the DTC and defaults the video display to full brightness.

Conditions for Clearing the DTC

* The condition responsible for setting the DTC no longer exists.

* A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.

Reference Information

Schematic Reference

Video System Schematics (See: Accessories and Optional Equipment/Diagrams/Electrical Diagrams/Video System Schematics)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views)

Description and Operation

Video Entertainment System Description and Operation (Non-Headrest DVD Systems) (See: Accessories and Optional Equipment/Description

and Operation/Video Entertainment System Description and Operation (Non-Headrest DVD Systems))Video Entertainment System Description

and Operation (Dual Headrest DVD Systems) (See: Accessories and Optional Equipment/Description and Operation/Video Entertainment System

Description and Operation (Dual Headrest DVD Systems))

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

Thursday, November 21, 2019

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 379

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 379

DTC Descriptors

DTC B1025 01

- Audio Output 1 Left Front Circuit Short to Battery

DTC B1025 02

- Audio Output 1 Left Front Circuit Short to Ground

DTC B1025 04

- Audio Output 1 Left Front Circuit Open

DTC B1035 01

- Audio Output 2 Right Front Circuit Short to Battery

DTC B1035 02

- Audio Output 2 Right Front Circuit Short to Ground

DTC B1035 04

- Audio Output 2 Right Front Circuit Open

DTC B1045 01

- Audio Output 3 Left Rear Circuit Short to Battery

DTC B1045 02

- Audio Output 3 Left Rear Circuit Short to Ground

DTC B1045 04

- Audio Output 3 Left Rear Circuit Open

DTC B1055 01

- Audio Output 4 Right Rear Circuit Short to Battery

DTC B1055 02

- Audio Output 4 Right Rear Circuit Short to Ground

DTC B1055 04

- Audio Output 4 Right Rear Circuit Open

DTC B1065 01

- Audio Output 5 Circuit Short to Battery (Center IP)

DTC B1065 02

- Audio Output 5 Circuit Short to Ground (Center IP)

DTC B1065 04

- Audio Output 5 Circuit Open (Center IP)

DTC B1075 01

- Audio Output 6 Circuit Short to Battery (Subwoofer)

DTC B1075 02

- Audio Output 6 Circuit Short to Ground (Subwoofer)

DTC B1075 04

- Audio Output 6 Circuit Open (Subwoofer)

DTC B1085 01

- Audio Output 7 Circuit Short to Battery (LR D-Pillar)

DTC B1085 02

- Audio Output 7 Circuit Short to Ground (LR D-Pillar)

DTC B1085 04

- Audio Output 7 Circuit Open (LR D-Pillar)

DTC B1095 01

- Audio Output 8 Circuit Short to Battery (RR D-Pillar)