2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 774
Repair Instructions
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, programming and setup
C12BB
DTC C012C, C121A, C128C, C128F, C12B9, C12BA, C12BB, or C12F7
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 C12F7
- ABS Boost Pressure Sensor and Regenerative Axle Pressure Sensor Not Plausible
DTC C128F
- ABS Regenerative Axle Pressure Sensor Raw Offset Error
DTC C012C 01
- Regenerative Axle Pressure Sensor Short to Battery
DTC C12BA
- ABS Regenerative Axle Pressure Sensor Circuit Short To Battery
DTC C012C 06
- Regenerative Axle Pressure Sensor Short to Ground or Open
DTC C12B9
- ABS Regenerative Axle Pressure Sensor Circuit Open or Short To Ground
DTC C012C 11
- Regenerative Axle Pressure Sensor Above Maximum Threshold
DTC C128C
- ABS Regenerative Axle Pressure Sensor Offset Error
DTC C012C 0F
- Regenerative Axle Pressure Sensor Erratic
DTC C12BB
- ABS Regenerative Axle Pressure Sensor Erratic
DTC C121A
- ABS Regenerative Axle Pressure Sensor
Circuit/System Description
The electronic brake control module (EBCM) uses input from the regenerative axle pressure sensor for more accurate control during a brake and
vehicle stability enhancement system (VSES) event. The regenerative axle pressure sensor is internal to the brake pressure modulator valve
assembly.
Conditions for Running the DTC
* Ignition ON.
* Ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
