Electronic Parking Brake Control Module Fault
Issue in the electronic parking brake system detected by the control module.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The electronic parking brake control module is having trouble communicating, which means your parking brake might not work right. This could prevent the brake from releasing or engaging properly.
What the computer is actually seeing
The electronic parking brake module is failing to verify the proper operation state, continuously logging faults or communication errors with related circuit components.
What a healthy reading looks like
Module communication should be less than 0.5 volts when active; otherwise, expect values indicating a fault when tested with a multimeter.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check the wiring and connectors to the electronic parking brake module for corrosion or damage. Repair any issues found. If no issues, go to step 2.
- 22. Measure voltage at the electronic parking brake module while operating the brake (should be near 0.5 volts when engaged). If incorrect, check for faulty module. If correct, go to step 3.
- 33. Confirm proper operation of the parking brake actuator. If not functioning, replace the actuator. If it works, suggest module replacement.
Common causes
- Corroded wiring harness
- Faulty electronic parking brake module
- Poor connections at the module or brake actuator
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It’s moderate severity; you can drive but should address it soon since your parking brake may not hold properly.
Will the issue come back after fixing it?
If the wiring and module are checked and fixed correctly, it shouldn’t come back.
Why does this code appear with others?
It often pairs with related codes indicating problems in the brake system or module communications.
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