2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 967

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 967

* 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

C120F

DTC C0880, C12E5, or C120F

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 C0880 00

- Device Voltage Reference Output Circuit

DTC C12E5 00

- Brake Pedal Position Sensor Reference Circuit

DTC C0880 02

- Device Voltage Reference Output Circuit Short to Ground

DTC C120F 00

- Device Voltage Reference Output Circuit Short to Ground

Diagnostic Fault Information

Circuit/System Description

The electronic brake control module (EBCM) supplies a shared 5 volt reference to the brake master cylinder piston position sensor, steering angle

sensor and brake master cylinder piston position sensor.

Conditions for Running the DTC

* Ignition ON.

* The ignition voltage is greater than 10 volts.

Conditions for Setting the DTC

The EBCM detects the voltage on the 5 V reference circuit to the brake master cylinder piston position sensor, steering angle sensor and brake

master cylinder piston position sensor is less than 4.8 V or greater than 5.2 V.

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