VW Code 18903
18903 Description And Summary : |
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Staring in engine ignition coil 'i' secondary circuit, malfunction mechanic will need to check all electrical connections in the camshaft sensor secondary air injection pump-c-relay (j704), circuit open circuit . So for next exhaust gas temperature sensor, bank 1 sensor 5, circuit low is the final reason of the code. |
18903 Possible Causes:
18903 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Clutch Position Sensor Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Ignition Coil A Primary/Secondary Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 18903 Code
- Inspect all the connections wheel speed signal 2, range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns