C0671Electric Park Brake Actuator Right Circuit
- Generic OBD-II code · Chassis
- How the car detects it
- C0671 cannot be traced publicly: no publicly available J2012 list, no NHTSA bulletin, no GM keyword list and no Saab index contains it. GM even uses the neighbouring C0670 for a damping sensor and logs the electric park brake motor of the 2011 Saab 9-5 under C028A, with subcodes for shorts to plus or to ground, an open circuit and wrong frequency. The title points to the right rear caliper actuator. In the TRW design a motor turns a gearbox via a toothed belt, which drives a spindle and nut against the piston; swash-plate units reach about 19 kN, planetary ones about 25 kN. To release, the module reverses the motor polarity. Corrosion at the plug or a dead motor leaves that wheel unclamped or stuck, and ZF warns against freeing it with an external power source.
- What you may notice
- Park brake warning light or message
- Right rear brake does not apply or does not release
- Likely causes
- LikelyMoisture or corrosion at the actuator plug in the wheel housing
- PossibleActuator motor or gearbox defective
- PossibleChafed or broken wire between module and actuator
- Repair
- Medium · Usually a job for a workshop.Typical cost: €100 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.