P1633 — Volkswagen — Accelerator-pedal sensor 2 G185: signal too low

P1633 concerns the G185 channel in the accelerator-pedal assembly.

Meaning, symptoms, causes and checks

P1633 concerns the G185 channel in the accelerator-pedal assembly. Correct identification matters: it does not designate the sensor in the throttle body.

Affected system: Accelerator pedal

Possible causes

  • Faulty wiring/connections or G185 sensor.

What to check

  • Inspect the pedal and its connections to the engine controller; test the channel against the vehicle wiring diagram.