OBD-II code · Chassis
C0039 Right Rear Tone Wheel
Fault detected on right rear tone wheel (pulse ring).
Is it safe to drive with C0039?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyTone ring damaged or contaminated
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
- Best left to a mechanic
- Typical labour
- 1–3 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Rr Tone Wheel
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.