Diagnostic Instructions
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 DIC message and/or a warning indicator may be displayed. |
C0558 5A
| • | The electric parking brake is disabled, one release allowed. |
| • | A DIC message and/or a warning indicator may be displayed. |
Conditions for Clearing the DTC
| • | The electric parking brake control module clears the history DTC when a current DTC is not detected in 40 ignition cycles. |
| • | Calibrate the electric parking brake control 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
Connector End View Reference
Component Connector End Views
Description and Operation
Electronic Parking Brake Control Module Description
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Verify DTC C0558 is not set.
| ⇒ | If DTC is set, perform the Parking Brake Calibration procedure in Module Setup. |
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for electric parking brake control module replacement, setup, and programming.
