2010 Cadillac Truck SRX FWD V6-3.0L Page 807

2010 Cadillac Truck SRX FWD V6-3.0L Page 807

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) provide an overview of each diagnostic category.

DTC Descriptors

DTC C0293 01

- Park Brake Switch Control Short to Battery

DTC C0293 06

- Park Brake Switch Control Low Voltage/Open

DTC C0293 08

- Park Brake Switch Control Performance-Signal Invalid

Circuit/System Description

The electric parking brake control module has an internal motor, apply actuator, release actuator, and temperature sensor. The electric parking brake

control module also contains the logic for applying and releasing the parking brake when commanded by the electric parking brake switch. The

electric parking brake module will perform diagnostics on the electric parking brake switch and its wiring harness to verify it is functioning

properly. When the electric parking brake control module receives a signal from the switch the internal circuit board temperature is checked to

verify it is within operating range before the control module performs the requested operation.

The electric park brake switch control diagnostic checks for failure conditions in the electric park brake switch and associated wiring into the

electric park brake module.

Conditions for Running the DTC

Ignition OFF, ACCESSORY, or RUN mode.

Conditions for Setting the DTC

The electric parking brake module detects a short to battery, short to ground, open circuit, or an internal parking brake switch control malfunction.

Action Taken When the DTC Sets

* The electric parking brake is disabled.

* A DIC message and/or a warning indicator may be displayed.

Conditions for Clearing the DTC

* The electric parking brake module clears the history DTC when a current DTC is not detected in 40 ignition cycles.

* The condition for the DTC is no longer present.

Reference Information

Schematic Reference

Park Brake System Schematics (See: Brakes and Traction Control/Parking Brake System/Diagrams/Electrical Diagrams)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)

Description and Operation

Electronic Parking Brake Control Module Description (See: Brakes and Traction Control/Parking Brake System/Parking Brake Control

Module/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)