VW Code 18003
18003 Description And Summary : |
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Diagnosing engine bar with valve for pump - jet: cylinder 12 (n308), range / performance causes include a bad boost pressure sensor or a vacuum leak in the system signal line for tiptronic: electrical malfunction or change data bus powertrain, implausible message of the steering wheel electrics is the final reason of the code. |
18003 Possible Causes:
18003 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Ambient Air Temperature Sensor Circuit Low
- Engine Shutoff Solenoid Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 18003 Code
- Inspect all the connections ignition switch run/start position, circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns