2010 Cadillac Truck SRX FWD V6-3.0L Page 831

2010 Cadillac Truck SRX FWD V6-3.0L 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)