OBD
C0039
Right Rear Tone Wheel
What it means
C0039 means Right Rear Tone Wheel.
Check these first
- A dirty or corroded right rear tone wheel
- A chipped or damaged right rear tone wheel
- A loose or misaligned right rear tone wheel
- An air gap out of range at the right rear speed sensor
What to do next
- Read the ABS codes and confirm the right rear fault
- Inspect the right rear tone wheel for dirt, chips or missing teeth
- Check the air gap at the right rear speed sensor
- Clean or replace the right rear tone wheel as needed
- Replace the right rear speed sensor if the tone wheel is clean
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.