2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 831
and ensure proper clearance to drum.
2. Verify DTC C0558 is not set.
瀚慖f DTC is set, perform the Park Brake Calibration procedure in Configuration/Reset Functions.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for parking brake control module replacement, setup, and
programming
C0561
DTC C0561
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
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC C0561 71
- System Disabled Information Stored-Invalid Serial Data Received
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 module will verify it has a valid signal from other modules before it performs
the requested operation.
Conditions for Running the DTC
* Ignition OFF, ACCESSORY, or RUN mode.
* Battery voltage is between 9-16V
Conditions for Setting the DTC
The parking brake control module receives an invalid serial data message or does not receive a serial data message from another module.
Action Taken When the DTC Sets
* A message and/or a warning indicator may be displayed.
* The electric parking brake functionality is degraded.
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 parking brake control module receives Valid signals from other modules.
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)
