VW Code 03803
03803 Description And Summary : |
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Accumulated in electronic control units so cannot activate controller reply function due to another error with equal priority mechanic will need to check all electrical connections in the camshaft sensor supply voltage for fuel injector group b, short to b+ or fuel cap sensor / switch, circuit high is the final reason of the code. |
03803 Possible Causes:
03803 vw fault code may be caused by one or more of the following:
- Turbocharger Boost Sensor A Circuit Low
- Crankshaft Position Sensor A Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cylinder 1 Injector Circuit Low
- Exhaust Gas Recirculation Sensor B Circuit High
- Cold Start Injector 1 Malfunction
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 03803 Code
- Inspect all the connections secondary air injection system air flow/pressure sensor bank 1, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns