2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 874
* Ignition voltage is greater than 9.5 volts.
* No wheel speed sensor faults exist.
* Brake is not applied.
* Vehicle is not cornering.
* No wheel spinning is detected.
Conditions for Setting the DTC
Wheel speed differences between one wheel and the others is greater than 25 percent.
Action Taken When the DTC Sets
* Antilock brake system (ABS), traction control system (TCS) and vehicle stability enhancement system (VSES) are disabled for the remainder
of the ignition cycle.
* The ABS and Stabilitrak indicator turns ON.
* The service Traction Control and Stabilitrak displays on the DIC.
Conditions for Clearing the DTC
* The DTC becomes history when the conditions for setting the DTC are no longer present.
* The history DTC clears after 100 malfunction-free ignition cycles.
* The EBCM receives a clear code command from the scan tool.
Diagnostic Aids
* Faulty wheel speed sensor will not set this DTC.
* A vehicle using a space saver spare will not set this code.
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
Inspect for one tire that has improper air pressure or improper size.
C0252
DTC C0252
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
