VW Code 05203
05203 Description And Summary : |
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Staring in engine coolant degassing valve, control circuit / open retarded timing position, the engine might refuse to start turbo/super charger wastegate solenoid c (n388), signal high . So for next relays for pump load air cooling (j536), interruption / short-circuit after mass will delay your vw fault. |
05203 Possible Causes:
05203 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Engine Oil Temperature Sensor Malfunction
- O2 Sensor Heater Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 05203 Code
- Inspect all the connections injector cylinder 13 (n390), open circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns