2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 953

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 953

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Brake Pressure Modulator Valve Replacement (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Hydraulic

Control Assembly - Antilock Brakes/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming

C120A

DTC C012D, C120A, C128A, C128D, C12BC, C12BD, or C12BE

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 C012D 00

- Brake Boost Regulation Pressure Sensor

DTC C128D

- Brake Boost Regulation Pressure Sensor

DTC C012D 01

- Brake Boost Regulation Pressure Sensor Short to Battery

DTC C12BD

- Brake Boost Regulation Pressure Sensor Short to Battery

DTC C012D 06

- Brake Boost Regulation Pressure Sensor Short to Ground or Open

DTC C12BC

- Brake Boost Regulation Pressure Sensor Short to Ground or Open

DTC C012D 11

- Brake Boost Regulation Pressure Sensor Above Maximum Threshold

DTC C128A

- Brake Boost Regulation Pressure Sensor Above Maximum Threshold

DTC C012D 5A

- Brake Boost Regulation Pressure Sensor Plausibility Failure

DTC C120A

- Brake Boost Regulation Pressure Sensor Plausibility Failure

DTC C012D 0F

- Brake Boost Regulation Pressure Sensor Erratic

DTC C12BE

- Brake Boost Regulation Pressure Sensor Erratic

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 (VSES) event. The boost pressure sensor is internal to the brake pressure modulator valve (BPMV).

Conditions for Running the DTC

* Ignition ON.

* The ignition voltage is greater than 10 V.

Conditions for Setting the DTC

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 91

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 91

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning)for BCM replacement, setup, and programming

B0012

DTC B0012 or B0013

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 B0012 01

- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Short to Battery

DTC B0012 02

- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Short to Ground

DTC B0012 04

- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Open Circuit

DTC B0012 0D

- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Resistance Above Threshold

DTC B0012 0E

- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Resistance Below Threshold

DTC B0013 01

- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Short to Battery

DTC B0013 02

- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Short to Ground

DTC B0013 04

- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Open Circuit

DTC B0013 0D

- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Resistance Above Threshold

DTC B0013 0E

- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Resistance Below Threshold

Diagnostic Fault Information

Circuit/System Description

If a malfunction is detected, a DTC will be stored in non-volatile memory. During a frontal crash of sufficient force the inflatable restraint sensing

and diagnostic module (SDM) will allow current to flow through the deployment loop in order to deploy the driver steering wheel air bag. The

SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage.

There are 2 shorting bars used within each connector which will short together both driver steering wheel air bag stage 1 high circuit and driver

steering wheel air bag stage 1 low circuit and both driver steering wheel air bag stage 2 high circuit and driver steering wheel air bag stage 2 low

circuit when the connector is disconnected. This will help to prevent unwanted deployment of the air bag during servicing.

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 890

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 890

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Brake Pressure Modulator Valve Replacement (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Hydraulic

Control Assembly - Antilock Brakes/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming

C12E9

DTC C0110, C12E0, C12E8, or C12E9

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 C0110 00

- Pump Motor Circuit

DTC C0110 61

- Pump Motor Circuit Actuator Stuck

DTC C12E0 00

- ABS Pump Motor Performance

DTC C12E8 00

- ABS Pump Motor Stuck

DTC C12E9 00

- ABS Pump Motor Stuck On

Diagnostic Fault Information

Circuit/System Description

The pump motor is a bi-directional motor and is an internal part of the brake pressure modulator valve assembly. There are three solid state relays

in the electronic brake control module (EBCM) that operate the pump. The pump motor runs every few brake stops in order to fill the high pressure

accumulator with brake fluid anytime the engine is running.

Conditions for Running the DTC

* Ignition ON.

* Ignition voltage is greater than 10 volts.

* The system enable relay is ON.

* The pump motor has been commanded ON, OFF and ON again.

Conditions for Setting the DTC

* The EBCM detects a short to ground or an open/high resistance on the B+ circuit.

* The EBCM detects an open/high resistance on the ground circuit.

* The EBCM detects the pump motor runs continuously.

* The EBCM detects the pump motor is binding or stalled.

Action Taken When the DTC Sets

* The EBCM disables the ABS/Traction Control System/Vehicle Stability Enhancement System for the duration of the ignition cycle.

* The ABS indicator illuminates.

* The red Brake indicator illuminates.

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 789

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 789

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Brake Pressure Modulator Valve Replacement (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Hydraulic

Control Assembly - Antilock Brakes/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming

C12B4

DTC C012A, C128B, C128E, or C12B2-C12B4

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 C012A 00

- Master Cylinder Pressure Sensor

DTC C128E

- Master Cylinder Pressure Sensor

DTC C012A 01

- Master Cylinder Pressure Sensor Short to Battery

DTC C12B3

- Master Cylinder Pressure Sensor Short to Battery

DTC C012A 06

- Master Cylinder Pressure Sensor Short to Ground or Open

DTC C12B2

- Master Cylinder Pressure Sensor Short to Ground or Open

DTC C012A 11

- Master Cylinder Pressure Sensor Above Maximum Threshold

DTC C128B

- Master Cylinder Pressure Sensor Above Maximum Threshold

DTC C012A 0F

- Master Cylinder Pressure Sensor Erratic

DTC C12B4

- Master Cylinder Pressure Sensor Erratic

Circuit/System Description

The electronic brake control module (EBCM) uses input from the master cylinder pressure sensor for more accurate control during a vehicle

stability enhancement system event. The master cylinder pressure sensor is internal to the brake pressure modulator valve.

Conditions for Running the DTC

* The ignition is ON.

* Ignition voltage is greater than 10 volts.

* The brake pedal is not applied.

Conditions for Setting the DTC

C012A 00, C128E or C128B

Internal sensor failure is detected.

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 778

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 778

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Brake Pressure Modulator Valve Replacement (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Hydraulic

Control Assembly - Antilock Brakes/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for EBCM replacement, setup, and programming

C12BD

DTC C012D, C120A, C128A, C128D, C12BC, C12BD, or C12BE

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 C012D 00

- Brake Boost Regulation Pressure Sensor

DTC C128D

- Brake Boost Regulation Pressure Sensor

DTC C012D 01

- Brake Boost Regulation Pressure Sensor Short to Battery

DTC C12BD

- Brake Boost Regulation Pressure Sensor Short to Battery

DTC C012D 06

- Brake Boost Regulation Pressure Sensor Short to Ground or Open

DTC C12BC

- Brake Boost Regulation Pressure Sensor Short to Ground or Open

DTC C012D 11

- Brake Boost Regulation Pressure Sensor Above Maximum Threshold

DTC C128A

- Brake Boost Regulation Pressure Sensor Above Maximum Threshold

DTC C012D 5A

- Brake Boost Regulation Pressure Sensor Plausibility Failure

DTC C120A

- Brake Boost Regulation Pressure Sensor Plausibility Failure

DTC C012D 0F

- Brake Boost Regulation Pressure Sensor Erratic

DTC C12BE

- Brake Boost Regulation Pressure Sensor Erratic

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 (VSES) event. The boost pressure sensor is internal to the brake pressure modulator valve (BPMV).

Conditions for Running the DTC

* Ignition ON.

* The ignition voltage is greater than 10 V.

Conditions for Setting the DTC

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2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 684

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Front Side Door Window Regulator Motor Replacement (See: Windows and Glass/Windows/Service and Repair/Front Side Door Window

Regulator Motor Replacement)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for DDS and PDS replacement, setup, and

programming

B3265

DTC B3265

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 Descriptor

DTC B3265 00

- Trunk/Hatch/Liftglass Release Output Circuit

Diagnostic Fault Information

Circuit/System Description

The liftglass release switch is an input to the body control module (BCM). The BCM supplies battery voltage to the signal circuit and when the

release switch is activated the signal circuit voltage goes low. The BCM controls the liftglass release actuator through the rear wiper motor control

module. When the release switch signal is activated the BCM applies battery voltage to the liftglass latch release signal circuit. The rear wiper

motor control module supplies voltage to the release actuator through the liftglass release actuator control circuit.

Conditions for Running the DTC

* System voltage must be 9-16 volts.

* The liftglass release operation is commanded.

Conditions for Setting the DTC

The BCM detects a fault in the liftglass release signal circuit.

Action Taken When the DTC Sets

The liftglass latch will be inoperative for as long as the fault is present.

Conditions for Clearing the DTC

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

* When the fault is no longer present, the DTC will be a history DTC.

* A history DTC will clear after 50 ignition cycles.

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2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 648

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Refer to the appropriate replacement procedure for the component causing the condition.

* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup, and programming

B2705

DTC B2705

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 Descriptor

DTC B2705 02

- Gearshift Unlock Circuit Short to Ground

Diagnostic Fault Information

Circuit/System Description

The body control module (BCM) controls the automatic transmission shift lock control solenoid by providing a battery positive voltage to the

solenoid. The BCM utilizes a smart driver to control the voltage supply circuit to the automatic transmission shift lock control solenoid. The smart

driver monitors the voltage and current flow of the control circuit.

Conditions for Running the DTC

* The ignition switch is in the ON position.

* The brake pedal is pressed.

* The transmission is in the PARK position.

Conditions for Setting the DTC

The DTC sets if there is a short to ground in the automatic transmission shift lock control solenoid control circuit.

Action Taken When the DTC Sets

The BCM will not attempt to enable the voltage supply circuit of the automatic transmission shift lock control solenoid until the next key cycle.

Conditions for Clearing the DTC

* A current DTC B2705 will clear when the malfunction is no longer present and the ignition switch is cycled.

* A history DTC will clear after 100 ignition cycles with no current DTC active during the 100 ignition cycles.

Reference Information

Schematic Reference

Shift Lock Control Schematics (See: Transmission and Drivetrain/Automatic Transmission/Transaxle/Shift Interlock/Diagrams/Electrical

Diagrams)

Connector End View Reference

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

Description and Operation

Automatic Transmission Shift Lock Control Description and Operation (See: Transmission and Drivetrain/Automatic

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2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 617

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Driver or Passenger Seat Back Cushion Heater Replacement (Escalade with HP2) ()Driver or Passenger Seat Back Cushion Heater

Replacement (Tahoe with HP2) ()Driver or Passenger Seat Back Cushion Heater Replacement (without HP2) ()

* Driver or Passenger Seat Cushion Heater Replacement (without HP2) ()Driver or Passenger Seat Cushion Heater Replacement (with HP2)

()

* Control Module References (See: Testing and Inspection/Programming and Relearning) for the HSM replacement, setup, and programming

Rear Seat

DTC B2508 or B2509 (Rear Seat)

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

by individual element control circuits. The RHSM 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 RHSM 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 RHSM 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 RHSM must be powered.

Conditions for Setting the DTC

B2508 02

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

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2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 607

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Driver or Passenger Seat Back Cushion Heater Replacement (Escalade with HP2) ()Driver or Passenger Seat Back Cushion Heater

Replacement (Tahoe with HP2) ()Driver or Passenger Seat Back Cushion Heater Replacement (without HP2) ()

* Driver or Passenger Seat Cushion Heater Replacement (without HP2) ()Driver or Passenger Seat Cushion Heater Replacement (with HP2)

()

* Control Module References (See: Testing and Inspection/Programming and Relearning) for the HSM replacement, setup, and programming

Dealer Installed

DTC B2508 or B2509 (Dealer Installed)

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 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

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2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 503

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Power Seat Switch Replacement (with HP2) ()Power Seat Switch Replacement (without HP2) ()

* Control Module References (See: Testing and Inspection/Programming and Relearning) for MSM replacement, setup, and programming

B1815

DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820

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 B1735 01

- Seat Front Up Switch Circuit Short to Battery

DTC B1740 01

- Seat Front Down Switch Circuit Short to Battery

DTC B1745 01

- Seat Rear Up Switch Circuit Short to Battery

DTC B1750 01

- Seat Rear Down Switch Circuit Short to Battery

DTC B1755 01

- Seat Assembly Forward Switch Circuit Short to Battery

DTC B1760 01

- Seat Assembly Rearward Switch Circuit Short to Battery

DTC B1815 01

- Seat Recline Forward Switch Circuit Short to Battery

DTC B1820 01

- Seat Recline Rearward Switch Circuit Short to Battery

Diagnostic Fault Information

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2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 495

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Power Seat Switch Replacement (with HP2) ()Power Seat Switch Replacement (without HP2) ()

* Control Module References (See: Testing and Inspection/Programming and Relearning) for MSM replacement, setup, and programming

B1750

DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820

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 B1735 01

- Seat Front Up Switch Circuit Short to Battery

DTC B1740 01

- Seat Front Down Switch Circuit Short to Battery

DTC B1745 01

- Seat Rear Up Switch Circuit Short to Battery

DTC B1750 01

- Seat Rear Down Switch Circuit Short to Battery

DTC B1755 01

- Seat Assembly Forward Switch Circuit Short to Battery

DTC B1760 01

- Seat Assembly Rearward Switch Circuit Short to Battery

DTC B1815 01

- Seat Recline Forward Switch Circuit Short to Battery

DTC B1820 01

- Seat Recline Rearward Switch Circuit Short to Battery

Diagnostic Fault Information

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2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 479

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Outside Rearview Mirror Motor Replacement (See: Body and Frame/Mirrors/Power Mirror Motor/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for DDM or PDM replacement, setup, and

programming

B1600

DTC B1544, B1600, or B1605

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 B1544 01

- Mirror Motors Common Circuit Short to Battery

DTC B1544 02

- Mirror Motors Common Circuit Short to Ground

DTC B1544 04

- Mirror Motors Common Circuit Open

DTC B1600 01

- Mirror Motor Vertical Circuit Short to Battery

DTC B1600 02

- Mirror Motor Vertical Circuit Short to Ground

DTC B1600 04

- Mirror Motor Vertical Circuit Open

DTC B1605 01

- Mirror Motor Horizontal Circuit Short to Battery

DTC B1605 02

- Mirror Motor Horizontal Circuit Short to Ground

DTC B1605 04

- Mirror Motor Horizontal Circuit Open

Diagnostic Fault Information

Circuit/System Description

The Driver Door Module (DDM) or Passenger Door Module (PDM) controls the mirror horizontal and vertical motors through the use of

bi-directional motor controls. When the mirror is commanded up and down, voltage or ground is supplied to the mirror vertical motor through the

mirror motor vertical control circuit and voltage or ground is supplied through the mirror motor common control circuit.

Horizontal controls operate in the same manner with the mirror motor horizontal control circuit supplying voltage or ground and the mirror motor

common control circuit suppling voltage or ground to the mirror horizontal motor when the mirror is commanded right and left.

Conditions for Running the DTC

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2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 464

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Battery Current Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Battery Current Sensor/Service and

Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup, and programming

Engine Electrical

DTC B1517

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 B1517 03

- Battery Voltage Below Threshold - BCM

DTC B1517 07

- Battery Voltage Above Threshold - BCM

DTC B1517 5A

- Battery Voltage Plausibility Failure - BCM

Diagnostic Fault Information

Typical Scan Tool Data

Circuit/System Description

The body control module (BCM) has 2 circuits for monitoring vehicle system voltage. The BCM B+ is supplied to terminal 3 X3 by the BCM fuse,

and the high resolution B+ is supplied to the BCM terminal 10 X4 by the IPC fuse. The BCM monitors the system voltage on both circuits to ensure

that the voltage stays within the proper range. Damage to components, and incorrect data may occur when the voltage is out of range. If the BCM

detects the system voltage on the high resolution B+ circuit is outside the normal range, DTC B1517 will set.

Conditions for Running the DTC

The BCM is awake.

Conditions for Setting the DTC

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2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 349

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning) for RCDLR replacement, setup, and programming

B1011

DTC B1011

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 Descriptor

DTC B1011 71

- System Disabled Information Stored Invalid Serial Data Received

Circuit/System Description

The vehicle rollover sensor (ROS) monitors the vehicle speed signal (VSS) on the GMLAN serial data circuit. If the VSS is marked as invalid or is

missing, the ROS will set a diagnostic trouble code (DTC).

Conditions for Running the DTC

Ignition voltage is between 9-16 volts.

Conditions for Setting the DTC

If the VSS is marked as invalid or is missing.

Conditions for Clearing the DTC

* The condition for setting the DTC no longer exists.

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

Diagnostic Aids

DTC B1011 does not indicate a ROS system malfunction and will not cause any warning indicators to illuminate. Factors such as a long engine

crank or a delay in serial data communications will cause B1011 to set.

Reference Information

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* 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)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

SIR/SRS Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Wiring Repairs/SIR/SRS Wiring Repairs)

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 248

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 248

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* GMLAN Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Wiring Repairs/GMLAN Wiring Repairs)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for module replacement, setup, and programming

B153A

DTC B153A

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 B153A 00

- Liftgate Latch Switch Signal Circuit

DTC B153A 08

- Liftgate Latch Switch Signal Circuit Signal Invalid

Diagnostic Fault Information

Circuit/System Description

The ratchet, pawl, and sector switches are part of the liftgate latch assembly and are used by the liftgate module (LGM) to determine the state of the

latch during the process of latching or unlatching. The ratchet and pawl switches will be inactive when the primary and secondary latches are

latched, and the sector switch will be active during the power cinch function. Each of the latch switch signal circuits are supplied battery voltage

through a resistor and monitored within the LGM. The latch switches share a common low reference circuit from the LGM and when the switch