Electronic Parking Brake Actuator -- Left Rear
What does C0269 mean?
The C0269 code means the vehicle's onboard diagnostic system has detected: Electronic Parking Brake Actuator -- Left Rear. This is a critical severity code.
Common Symptoms
- Parking brake warning light on
- Left rear parking brake does not engage or release
- Uneven parking brake application
- Grinding or clicking noise from left rear brake
- Parking brake error message on display
Probable Causes (Ranked by Likelihood)
- Failed left rear parking brake actuator motor Very High
- Corroded actuator connector or wiring High
- Parking brake caliper seized or binding Moderate
- Actuator motor gear stripped or jammed Moderate
- Parking brake module output driver failure Low
Step-by-Step Diagnostic Procedure
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Scan for DTCs and check which actuator is faulting
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Inspect the left rear caliper parking brake actuator connector for corrosion
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Test actuator motor by applying voltage directly to verify motor function
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Check the parking brake caliper for binding or seized piston
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Listen for the actuator motor attempting to run when parking brake is commanded
Frequently Asked Questions
Can I replace the actuator motor separately from the caliper?
On some vehicles, the actuator motor is a separate component that bolts to the caliper. On others, it is integrated into the caliper and the entire caliper assembly must be replaced.
Why does the parking brake actuator fail?
Actuator motors fail due to corrosion from road salt and moisture, worn internal gears, or seized caliper mechanisms that overwork the motor. Regular parking brake use actually helps keep components free and extends their life.
Do I need a scan tool to replace the actuator?
Yes, in most cases. The parking brake system must be put into service mode using a scan tool to retract the caliper pistons before the actuator or pads can be replaced.