DTC C0574
| DTC C0574 |
| Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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| DTC Descriptors |
DTC C0574 01
Circuit Board Temperature Sensor Short to Battery
DTC C0574 02
Circuit Board Temperature Sensor Short to Ground
DTC C0574 54
Circuit Board Temperature Sensor High
| 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 |
C0574 01, C0574 02
The electric parking brake module detects a short to battery or a short to ground.C0574 54
The electric parking brake module detects an internal temperature that is above the allowed value.| Action Taken When the DTC Sets |
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A message and/or a warning indicator may be displayed.
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The electric parking brake is disabled, one release allowed.
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| Conditions for Clearing the DTC |
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The electric parking brake module clears the history DTC when a current DTC is not detected in 40 ignition cycles.
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The electric parking brake module is replaced or the internal temperature drops below the allowed temperature.
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| Diagnostic Aids |
Check for debris on the electric parking brake module which may cause the module to overheat.
| 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
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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Scan Tool Reference
Control Module References for scan tool information
| Circuit/System Verification |
C0574 01 or C0574 02
Remove the EPB fuse and reinstall. Verify DTC C0574 is not set.C0574 54
| 1. |
Allow the electric parking brake control module to cool down for 15 minutes. |
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Verify DTC C0574 54 is not set.
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| 3. |
If DTC is set, replace the K83 Electric Parking Brake Control Module.
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for Electric Parking Brake Module replacement, setup, and programming
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