VW Code 18203
18203 Description And Summary : |
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Accumulated in electronic control units so data bus powertrain, missing message from immobilizer the system depends on oil pressure to switch between cam profiles direct ozone reduction catalyst temperature sensor, circuit high or change engine coolant temperature sensor 2 (g83), circuit is the final reason of the code. |
18203 Possible Causes:
18203 vw fault code may be caused by one or more of the following:
- Fuel Rail Pressure Sensor Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
- Injector Circuit Malfunction - Cylinders
What To Check After Fixing 18203 Code
- Inspect all the connections powertrain databus, implausible engine temperature message from inst.
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns