C050CLeft Rear Wheel Speed Sensor A Circuit/Open
- Generic OBD-II code · Chassis
- Turns on the check-engine light
- Can trigger limp mode
- How the car detects it
- C050C is stored when the brake controller loses the current path to the left rear speed sensor. GM's 2023 OBD tables (23OBDG07) read 0.12 s at under 3.8 mA in the signal wire as a ground short or a break and rate the code Type A, so the MIL can come on in the first trip. Mitsubishi lists C1065-13 of the Outlander PHEV as C050C, detected within one second, with ABS, ASC and engine lamps lit. Its fail-safe list shows what a dead rear sensor costs: besides ABS, EBD and stability control, the electric parking brake function is suspended. The rear harness runs past the trailing arm or axle and flexes with every bump, which makes chafed or pulled leads typical; a sensor with an internal open is the other usual finding.
- What you may notice
- ABS and stability warning lamps on right after key-on, check-engine lamp on some makes
- ABS, stability control and on some models electric parking brake functions restricted
- Live data shows no left rear wheel speed
- Likely causes
- LikelySensor lead chafed or torn where it follows the rear suspension
- PossibleLeft rear sensor connector corroded or not latched
- PossibleLeft rear sensor open internally
- Repair
- Medium · Often possible to do yourself.Typical cost: €30 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.