2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 773
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
C128F, C12F7, C121A, C012C 11 or C128C
Internal sensor failure is detected.
C012C 01 or C12BA
A short to battery is detected on the sensor signal circuit.
C012C 06 or C12B9
A short to ground or open is detected signal circuit.
C012C 0F or C12BB
Signal is erratic and changes faster than physically allowed.
Action Taken When the DTC Sets
A DIC message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for setting the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Reference Information
Schematic Reference
Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* 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)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
1. Using a scan tool, perform the EBCM, Module Setup, EBCM Relearn.
2. Verify that DTC C012C, C121A, C128C, C128F, C12B9, C12BA, C12BB or C12F7 is not set.
瀚慖f the DTC is set replace brake pressure modulator valve assembly. If the DTC resets, replace the EBCM.
