C0680 code meaning
Electric Park Brake Module Internal Fault
What C0680 means
Public evidence for C0680 is lacking: it is in none of the public J2012 tables, bulletins or maker indexes. The title describes a park brake controller that fails its own checks. How GM handles that is documented for the 2011 Saab 9-5, just under other numbers: C056E flags software that is missing, an absent calibration or implausible software, and C0558 a calibration or mechanical fault; depending on the case the brake is disabled outright or allowed one more release. In many current cars the park brake logic lives inside the ABS/ESC module, which drives both motors directly. After pad or caliper work the system must be put into maintenance mode and calibrated again, so a skipped calibration or interrupted programming is a likely trigger alongside a genuinely failed board.
C0680 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyHard
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of C0680
- Park brake warning, function disabled or degraded
- Brake cannot be applied, or only one more release is allowed
Common causes of C0680
- Most likelyCalibration after brake service skipped or programming interrupted
- PossibleElectronics inside the park brake or ABS/ESC module failed
- Less likelyLow battery voltage during self-test or programming
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Epb control module
What each part of C0680 means
| C | Chassis system: brakes, ABS, steering and suspension. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 80 | The exact fault in that area. |
What to do next
- Note C0680 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about C0680
What does C0680 mean?
C0680 means "Electric Park Brake Module Internal Fault". Public evidence for C0680 is lacking: it is in none of the public J2012 tables, bulletins or maker indexes. It is a generic code, so it means the same on every make.
Is it safe to drive with C0680?
C0680 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will C0680 fail an emissions test?
C0680 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is C0680 to fix?
Difficulty: hard. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will C0680 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.