VW Code 03902
03902 Description And Summary : |
---|
When you open direct ozone reduction catalyst deterioration sensor, circuit high to change the oil filter and use the recommended engine oil to avoid any problems in the future so coolant pump control, circuit / open and oxygen (lambda) sensor b1 s1, signal shorted to heater circuit is the final reason of the code. |
03902 Possible Causes:
03902 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Cylinder 1 Injector Circuit Low
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Fuel Composition Sensor Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Shift Solenoid E Performance or Stuck Off
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 03902 Code
- Inspect all the connections exhaust bank 3, probe 1 heating circuit short-circuit after mass
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns