2010 Cadillac Truck Escalade ESV AWD V8-6.2L Page 878
Conditions for Setting the DTC
* Low brake fluid is detected.
* A short to ground exists on the signal circuit.
Action Taken When the DTC Sets
* The EBCM disables the antilock brake system (ABS)/traction control system (TCS) dynamic rear proportion (DRP) and vehicle stability
enhancement system (VSES).
* A DIC message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.
Reference Information
Schematic Reference
Hydraulic Brake Schematics (See: Brakes and Traction Control/Hydraulic System/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Brake Warning System Description and Operation (See: Brakes and Traction Control/Hydraulic System/Description and Operation/Brake
Warning System 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. Inspect for proper brake fluid level, the fluid level should be at or above the proper level.
锟斤拷If low, refer to Brake Fluid Loss (See: Brakes and Traction Control/Hydraulic System/Testing and Inspection/Symptom Related
Diagnostic Procedures/Brake Fluid Loss).
2. Ignition ON, observe the scan tool IPC Brake Fluid parameter. The reading should be OK.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the brake fluid level switch.
2. Test for less than 10 ohm between the ground circuit terminal A and ground.
锟斤拷If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify the scan tool IPC Brake Fluid parameter is Ok.
锟斤拷If not the specified value, test the signal circuit for a short to ground. If the circuit tests normal, replace the IPC.
4. Install a 3A fused jumper wire between the signal circuit terminal B and ground. Verify the scan tool IPC Brake Fluid parameter is Low.
锟斤拷If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the
IPC.
5. If all circuits test normal, test or replace the brake fluid level switch.
