P0705moderate severityPowertrain
Transmission Range Sensor Circuit (PRNDL Input)
on 2004-2006 Audi A8 4.2L V8 · AWD
What this code means
Malfunction in the transmission range sensor (also called neutral safety switch or PRNDL switch).
Symptoms
- Check Engine Light
- Incorrect gear display
- Starter may not engage
- Harsh or no shifting
- Backup lights not working
Common causes
- Faulty range sensor/switch
- Misadjusted linkage
- Wiring damage
- Corroded connector
Diagnostic steps
- Check shift linkage adjustment
- Test range sensor signals
- Inspect wiring
- Verify correct gear indication with scan tool
Repair notes
Adjust linkage or replace range sensor.
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