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TuningBot DTC Database · v4.37.15

P1633 VAG - Diagnostic Trouble Code (2 interpretations)

Manufacturer-specific interpretation for VAG. All interpretations of P1633

P · PowertrainEngineOBD2

What P1633 means

P1633
Accelerator pedal position (APP) sensor 2 - low input VAG · engine Data confidence 62%

The control module detected that the Accelerator pedal position (APP) sensor 2 signal stayed below the expected range. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Wiring short to ground
  • APP sensor
Applies to Audi
P1633
Accelerator Position Sensor 2 (G185): Signal too Low VAG · engine Data confidence 84%

The control module detected that the Accelerator Position Sensor 2 (G185) value was below the expected limit. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 18041. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).

Symptoms

Unknown

Possible causes

  • Wiring and/or connections faulty
  • Sensor (G185) faulty
Applies to Volkswagen

Related and nearby codes

How to read P1633

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

633

Specific fault index within the subsystem.

Frequently asked questions about P1633

What does P1633 mean?

Diagnostic Trouble Code (2 interpretations). The control module detected that the Accelerator pedal position (APP) sensor 2 signal stayed below the expected range. This is the manufacturer-specific definition used by Audi.

Is P1633 generic or manufacturer-specific?

P1633 is a manufacturer-specific code. In this database it is documented for: VAG. The same number can mean something different on other brands.

Can TuningBot remove P1633 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningStage 1 dyno results for VAG engines See the results →

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