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DTC C028F

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 C028F 01: Hand brake Solenoid Actuator Circuit Short to Battery

DTC C028F 02: Hand brake Solenoid Actuator Circuit Short to Ground

DTC C028F 08: Hand brake Solenoid Actuator Circuit Performance-Signal Invalid

Circuit/System Description

The hand brake control module has an internal motor, apply actuator, release actuator, and temperature sensor. The hand brake control module also contains the logic for applying and releasing the hand brake when commanded by the hand brake control switch. When the hand 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 hand brake control module contains an internal hand brake solenoid actuator, and performs diagnostics on the solenoid actuator circuitry to verify it is functioning properly

Conditions for Running the DTC

Ignition OFF, ACCESSORY, or RUN mode.

Conditions for Setting the DTC

The hand brake control module detects an internal hand brake solenoid malfunction.

Action Taken When the DTC Sets
    • The electric hand brake is disabled, one release allowed.
    • A message and/or a warning indicator may be displayed.

Conditions for Clearing the DTC
    • The hand 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.

Reference Information

Schematic Reference

Hand brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Electronic Hand brake Control Module Description

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Verify that DTC C028F is not set.

⇒If DTC is set, program the hand brake control module. If the DTC resets, replace the K83 Hand brake Control Module.

Repair Instructions

Perform the Diagnostic Repair Verification

    •  Electronic Hand brake Control Module Replacement
    •  Control Module References
   


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