P0705 on Audi: Transmission Range Sensor Circuit Malfunction (PRNDL Input)
Diagnostic trouble code P0705 on Audi vehicles — what it means, the common
causes, and how to confirm the real fault before replacing parts.
What does P0705 mean?
P0705 indicates: Transmission Range Sensor Circuit Malfunction (PRNDL Input).
This relates to the Transmission system.
Common causes of P0705
Hall sensor failure in Multi-Function Transmission Range Switch F125
faulty gearshift combination signal preventing selector lever position identification
failure of one or more Hall sensors (A, B, C, or D) in the transmission range switch causing unrecognized gearshift combinations
What to check (live data)
gearshift combination signals from Hall sensors A, B, C, D (expected combinations per selector lever position, e.g. P = 0101, R = 0100, between P and R = 0110)
read measured value block via VAS 5051 function 08
fault memory interrogation via VAS 5051 function 02
Parts often involved in P0705
Multi-Function Transmission Range Switch F125
Hall sensors within the transmission range switch
Don't replace parts until the root cause is confirmed — many of these codes are caused by wiring, a connector or an upstream fault, not the part itself.
Get the confirmed root cause for P0705 — on YOUR vehicle
A code is a symptom, not a diagnosis. AutoDX Pro cross-checks several
independent assessments, pinpoints the actual root cause, gives you the
exact tests to confirm it, and shows the parts — only after the cause is
confirmed. Reads your scan-tool photo and decodes your VIN with open
recalls.
P0705 is a diagnostic trouble code: Transmission Range Sensor Circuit Malfunction (PRNDL Input).
What are the common causes of P0705 on an Audi?
Common causes include: Hall sensor failure in Multi-Function Transmission Range Switch F125, faulty gearshift combination signal preventing selector lever position identification, failure of one or more Hall sensors (A, B, C, or D) in the transmission range switch causing unrecognized gearshift combinations. The exact cause depends on the vehicle — confirm it before replacing parts.
Can I keep driving an Audi with P0705?
It depends on the fault and your symptoms. Some causes are minor, others can damage components or affect safety. Get the root cause confirmed before deciding.
How do I fix P0705 on an Audi?
Confirm the actual root cause with targeted tests first, then replace only the part that's at fault. AutoDX Pro gives you the root cause, the exact tests, and the parts for P0705 on your specific Audi.