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
