P0638

P0638

Throttle Adjusting Unit Spring Check Closing - Above Limit/Below Limit

Diagnostic conditions
- Ignition on (approx. 30 seconds)
- Battery positive voltage greater than 10 V
- Vehicle is stationary
- Engine not running
- Engine temperature between 5 and 100 °C
- Intake air temperature greater than 5 °C
- Pedal value less than 0.8 %

Possible cause of fault
- Throttle adjusting unit faulty

Diagnosis/troubleshooting