2010 Cadillac CTS Sedan AWD V6-3.6L Page 725

2010 Cadillac CTS Sedan AWD V6-3.6L Page 725

DTC Descriptors

DTC C0558 55

- Calibration Data Too Few Transitions

DTC C0558 5A

- Calibration Data Not Plausible

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. 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.

Conditions for Running the DTC

Ignition OFF, ACCESSORY, or RUN mode.

Conditions for Setting the DTC

C0558 55

The electric parking brake control module detects a calibration malfunction.

C0558 5A

The electric parking brake control module detects mechanical problems with the parking brake system.

Action Taken When the DTC Sets

C0558 55

* The electric parking brake is disabled, switch command will not be accepted.

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

C0558 5A

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

* Calibrate the electric parking brake module.

Diagnostic Aids

* Verify the electric parking brake control module software and calibrations are the newest available versions.

* Verify the parking brake cable is not broken or pinched.

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)

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/Circuit Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit

Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Wiring Repairs/Wiring Repairs)