2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 874

2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 874

* BMC Prim. Piston Pos. Sen. 5 V Reference Position - Between 4.75-5.25 V

* BMC Primary Piston Position Sensor A - Between 0.4-0.8 V

* BMC Primary Piston Position Sensor B - Between 4.2-4.6 V

瀚慖f any of the parameters are not within the specified range, refer to DTC C0277, C120C, C129A, C129B, C129D, C129E, C12B1, or

C12F8 (See: C Code Charts/C0277/Antilock Brake System - Hybrid (HP2)).

6. Brakes not applied, verify the following EBCM scan tool parameters are within the specified range:

* Master Cylinder Pressure Sensor Input - Less than 100 kPa (15 psi)

* Rear Brake Pressure Sensor - Less than 100 kPa (15 psi)

* Brake Pressure Sensor Input - Less than 100 kPa (15 psi)

* Accum. Pressure Sensor - Less than 800 kPa (116 psi)

瀚慖f any of the parameters are not within the specified range, replace the brake pressure modulator valve.

7. Perform a hydraulic check, refer to Brake Hydraulic and Assist System Diagnosis (Two-mode Hybrid) (See: Brakes and Traction

Control/Hydraulic System/Testing and Inspection/Component Tests and General Diagnostics/Brake Hydraulic and Assist System Diagnosis

(Two-mode Hybrid)).

8. If the Brake Hydraulic and Assist System tests normal, replace the brake pressure modulator valve and verify DTC does not reset. If the DTC

resets, replace the EBCM.

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, setup, relearn, and

programming

C12E0

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