C0617Park Brake Control Module Control Circuit Low
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- C0617 says the supply or control line feeding the parking brake electronics reads too low. Because both caliper motors draw several amps when they clamp, a weak battery, a poor ground or a corroded feed shows up here first. Mitsubishi's ABS unit on the 2023 Outlander PHEV sets C10B7-16 when the ignition feed drops to 10 V or less for about a second and then suspends the parking brake and hill start assist. GM's 2025 EBCM tables stop the motor and block actuation when its voltage stays under 7 V for 700 ms, but they store that as C0616. In the integrated layout described for VDA 305-100 the power stage belongs to the ESC host, so the feed is shared. No maker publishes C0617; charge the battery before chasing it.
- What you may notice
- Parking brake warning lamp, often together with other low-voltage messages
- Parking brake applies slowly or not at all
- Hill start assist unavailable
- Likely causes
- LikelyDischarged or failing 12 V battery
- PossibleHigh resistance in the module ground or power feed
- RareControl or enable line shorted to ground
- Repair
- Easy · Often possible to do yourself.Typical cost: €0 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.