C0517Right Rear Wheel Speed Sensor A Correlation
- Generic OBD-II code · Chassis
- Turns on the check-engine light
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- C0517 reports that the right rear speed disagrees with the rest of the vehicle. GM's 2025 tables (25OBDG04A) run missing, dropout, fast-missing and too-fast checks for this wheel; the missing-sensor test, a wheel under 1.5 km/h while others exceed 6 km/h, is rated Type B there, i.e. MIL after two trips. The same tables park an internal fault under C0517: when the sensor supply driver's requested and reported states, exchanged with the ASIC over SPI, disagree for 100 ms, the code is set without any wiring fault outside. Mitsubishi lists C1067-64 as C0517 and checks the right rear against the others between 10 and 60 km/h, citing tire size. GM bulletin PIT5950 includes C0517 among repeat codes after a wrong sensor was fitted.
- What you may notice
- ABS and stability lamps after driving off or at moderate speed
- Code returns after sensor replacement if the true cause is elsewhere
- Likely causes
- LikelyRight rear tire not matching the others in size or wear
- PossibleWeak encoder or excessive air gap at the right rear
- RareWrong sensor installed during an earlier repair
- RareSensor supply driver inside the brake module faulty (GM)
- Repair
- Medium · Often possible to do yourself.Typical cost: €0 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.