P0375moderate severityPowertrain
Timing Reference High Resolution Signal B Malfunction
on 2003 Audi A6 3.0L V6 · AWD
What this code means
The PCM detected a malfunction in the high resolution timing reference signal B. This affects the accuracy of ignition and injection timing.
Symptoms
- Check engine light on
- Poor engine performance
- Rough idle or misfire
Common causes
- Faulty timing reference sensor
- Wiring or connector fault
- Damaged tone ring
- Faulty PCM
Diagnostic steps
- Retrieve trouble codes and freeze frame
- Inspect sensor wiring and connectors
- Check tone ring for damage
- Test sensor output and replace if needed
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