2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 764
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C028F 01
- Park Brake Solenoid Actuator Circuit Short to Battery
DTC C028F 02
- Park Brake Solenoid Actuator Circuit Short to Ground
DTC C028F 08
- Park Brake Solenoid Actuator Circuit Performance-Signal Invalid
Circuit/System Description
The parking brake control module has an internal motor, apply actuator, release actuator, and temperature sensor. The parking brake control module
also contains the logic for applying and releasing the parking brake when commanded by the park brake control switch. When the 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 parking brake control module contains an internal park brake solenoid actuator, and performs
diagnostics on the solenoid actuator circuitry to verify it is functioning properly
Conditions for Running the DTC
Ignition OFF, ACCESSORY, or RUN mode.
Conditions for Setting the DTC
The parking brake control module detects an internal park brake solenoid malfunction.
Action Taken When the DTC Sets
* The electric parking brake is disabled, one release allowed.
* A message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The parking brake control 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)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Verify that DTC C028F is not set.
If DTC is set, program the parking brake control module. If the DTC resets, replace the K83 Parking Brake Control Module.
