P0992moderate severityPowertrain
Transmission Fluid Pressure Sensor/Switch F Circuit High
on 2005-2011 Audi A6 4.2L V8 · AWD
What this code means
The voltage from transmission fluid pressure sensor F is reading higher than the normal range. This is often caused by a short to voltage or an open in the circuit.
Symptoms
- Harsh or delayed shifts
- Transmission warning light on
- Possible limp mode
Common causes
- Short to voltage in signal wire
- Open ground circuit
- Faulty pressure sensor F
- Corroded connector pins
Diagnostic steps
- Retrieve trouble codes and freeze frame data
- Check sensor signal voltage with a multimeter
- Inspect wiring for shorts to power and open grounds
- Replace sensor if wiring tests good
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