P0638
P0638Throttle Adjusting Unit Spring Check Closing - Above Limit/Below Limit
Diagnostic conditions
- Ignition on (approx. 30 seconds)
- Battery positive voltage > 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
Affected terminals
- -
Diagnosis/troubleshooting
