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DTC C0558 > < DTC C028F

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DTC C0298

Diagnostic Instructions

•  Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
•  Review Strategy Based Diagnosis for an overview of the diagnostic approach.
•  Diagnostic Procedure Instructions provide an overview of each diagnostic category.

DTC Descriptors

DTC C0298 00: Park Brake Unlatch Switch Circuit Malfunction

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.

Conditions for Running the DTC

Ignition OFF, ACCESSORY, or RUN mode.

Conditions for Setting the DTC

The parking brake control module detects the apply or release button was activated for more than 90 seconds.

Action Taken When the DTC Sets

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.
•  The park brake control switch button is released using the scan tool.

Diagnostic Aids

Check if the park brake control switch is stuck in the apply or release position which may cause the DTC to set.

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

1. Verify DTC C0293 is not set.
⇒ If DTC C0293 is set, refer to DTC C0293 .
2. Command the Parking Brake Cable Service Release to Released with a scan tool. The BRAKE light should turn off and the Park Brake Status on the scan tool should display Released.
⇒ If the BRAKE light does not turn off or the Park Brake Status does not display Released replace the K83 Parking Brake Control Module.

Repair Instructions

Perform the Diagnostic Repair Verification

DTC C0558 > < DTC C028F