DTC C0574
Diagnostic Instructions
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 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
C0574 01, C0574 02
The parking brake control module detects a short to battery or a
short to ground.
C0574 54
The parking brake control module has detected an internal
temperature that is above the allowed value.
Action Taken When the DTC Sets
| • |
A message and/or a warning
indicator may be displayed. |
| • |
The electric parking brake is
disabled, one release allowed. |
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 parking brake control
module is replaced or the internal temperature drops below the
allowed temperature. |
Diagnostic Aids
Check for debris on the parking brake control 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
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.
If DTC is set, replace the K83 Parking Brake Control Module.
C0574 54
|
Note: Diagnose all
other parking brake control module system related faults before
performing this diagnostic. Other faults may cause the circuit
board to overheat. Do not attempt to apply the electric parking
brake.
|
| 1. |
Allow the parking brake
control module to cool down for 15 minutes. |
| 2. |
Verify DTC C0574 54 is not
set. |
| ⇒ |
If DTC is set, replace the K83 Parking Brake
Control Module. |
Repair Instructions
Perform the
Diagnostic Repair Verification
|
