What does code P1633 mean on Volkswagen vehicles?
The ECU detects that accelerator pedal position (APP) sensor 2 signal voltage is below specification.
OBD-II Code Volkswagen
P1633 — Volkswagen — Accelerator Pedal Position Sensor 2 Signal Too Low
The ECU detects that accelerator pedal position (APP) sensor 2 signal voltage is below specification.
Common symptoms
- Poor acceleration response
Possible causes
- Faulty APP sensor
- wiring short to ground
Initial recommendation
Inspect accelerator pedal sensor and wiring; replace sensor if necessary.
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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