P1633

P1633 OBD Code Definition:
P1633 Throttle Valve Adaptation; Limp Home Position
P1633 OBD Code Description:

Possible Symptoms

  • Unknown

Possible Causes

  • Wiring and/or connections faulty
  • Sensor (G185) faulty

Possible Solutions

  • Have a look at the Pedal Position Sensor assembly, not the Throttle Body.
  • Check all connections between ECU and accelerator pedal – of course the pedal itself could be defective too.

Tech Notes

  • There are 2 sensors in the accelerator pedal, both measure the same except that they are working in opposite directions. This means one counts from 0 to 100, while the other one counts from 100 to 0.

 

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