| The electric park brake will not engage or release (with no electric park brake warning message) |
- Electric park brake left/right actuator incorrectly installed
- Rear left/right brake pads excessively worn
- Service brake incorrectly adjusted following brake pads change
- Rear left/right brake pad(s) seized (in caliper)
- Rear left/right brake caliper slide(s) seized
- Rear left/right brake caliper piston(s) seized
- Electric park brake system fault
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- Check the installation of the electric park brake actuators
- Check the rear brake pads for excessive wear
- Refer to the relevant section of the workshop manual and perform routine - Service Mode Deactivation
- Check the rear brake pads for seizure
- Check the rear brake caliper slides for seizure
- Check the rear brake caliper pistons for seizure
- Using the manufacturer approved diagnostic system, check the anti-lock brake system control module for related DTCs and refer to the relevant DTC index
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| The electric park brake will not engage or release (with electric park brake warning message) |
- Electric park brake left/right actuator incorrectly installed
- Rear left/right brake pads excessively worn
- Rear left/right brake pad(s) seized (in caliper)
- Rear left/right brake caliper slide(s) seized
- Rear left/right brake caliper piston(s) seized
- Parking brake system fault
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- Check the installation of the electric park brake actuators
- Check the rear brake pads for excessive wear
- Check the rear brake pads for seizure
- Check the rear brake caliper slides for seizure
- Check the rear brake caliper pistons for seizure
- Using the manufacturer approved diagnostic system, check the anti-lock brake system control module for related DTCs and refer to the relevant DTC index
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| No communication with the anti-lock brake system control module |
- Anti-lock brake system control module power or ground circuit open circuit, high resistance
- High speed CAN bus (chassis) circuit short circuit to ground, short circuit to power, open circuit, high resistance
- High speed CAN bus (powertrain) circuit short circuit to ground, short circuit to power, open circuit, high resistance
- FlexRay bus circuit short circuit to ground, short circuit to power, open circuit, high resistance
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- Refer to the electrical circuit diagrams and check the anti-lock brake system control module power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary
- Using the manufacturer approved diagnostic system, perform a CAN network integrity test. Refer to the electrical circuit diagrams and check the high speed CAN bus (chassis) circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
- Using the manufacturer approved diagnostic system, perform a CAN network integrity test. Refer to the electrical circuit diagrams and check the high speed CAN bus (powertrain) circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
- Refer to the electrical circuit diagrams and check the FlexRay bus circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
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| PARK BRAKE FAULT warning massage displayed in the message center |
- Electric park brake system fault
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- Using the manufacturer approved diagnostic system, check the anti-lock brake system control module for related DTCs and refer to the relevant DTC index
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| Brakes drag |
- Electric park brake left/right actuator incorrectly installed
- Rear left/right brake pads excessively worn
- Rear left/right brake pad(s) seized (in caliper)
- Rear left/right brake caliper slide(s) seized
- Rear left/right brake caliper piston(s) seized
- Parking brake system fault
|
- Check the installation of the electric park brake actuators
- Check the rear brake pads for excessive wear
- Check the rear brake pads for seizure
- Check the rear brake caliper slides for seizure
- Check the rear brake caliper pistons for seizure
- Using the manufacturer approved diagnostic system, check the anti-lock brake system control module for related DTCs and refer to the relevant DTC index
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