What does code P1171 mean on Volkswagen vehicles?
The ECU detects that throttle actuator potentiometer signal 2 is outside the expected range or does not correlate with commanded throttle position.
OBD-II Code Volkswagen
P1171 — Volkswagen — Throttle Actuation Potentiometer Signal 2 Range/Performance Problem
The ECU detects that throttle actuator potentiometer signal 2 is outside the expected range or does not correlate with commanded throttle position.
Common symptoms
- Limp mode activation
- poor throttle response
- reduced engine power
Possible causes
- Faulty throttle potentiometer
- throttle body contamination
- wiring issues
Initial recommendation
Perform throttle body and potentiometer diagnostics, inspect wiring, and verify throttle adaptation.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine Volkswagen code P1171 with your vehicle's actual symptoms for more complete diagnostic guidance.
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