OBD-II code · Chassis
C0617 Park Brake Control Module Control Circuit Low
Park brake control module supply voltage below expected range. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
Is it safe to drive with C0617?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyLow battery or weak supply
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Epb Module, Power Supply
Related codes
- C0614Right Park Brake Actuator Stuck On
- C0615ESC Calibration Required
- C0616Park Brake Control Module Control Circuit Performance
- C0618Park Brake Control Module Control Circuit High
- C0619Brake Pedal Position Sensor A Offset Exceeded Learning Limit
- C061ABrake Pedal Position Sensor B Offset Exceeded Learning Limit
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.