What does code P1856 mean on Audi vehicles?
The transmission control module receives an error message related to accelerator or throttle pedal position sensor A from the engine control module.
OBD-II Code Audi
P1856 — Audi — Throttle/Pedal Position Sensor A Circuit Error Message from Engine Control Module
The transmission control module receives an error message related to accelerator or throttle pedal position sensor A from the engine control module.
Common symptoms
- Limp mode activation
- reduced throttle response
Possible causes
- Faulty accelerator or throttle position sensor
- wiring issue
Initial recommendation
Perform accelerator pedal and throttle position sensor diagnostics.
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
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