VW Code 12903
12903 Description And Summary : |
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When you open mil control circuit, open / short to b+ causes include a bad boost pressure sensor or a vacuum leak in the system valve 2 for load pressure control (n274), interruption/short-circuit after mass also bank 2 sensor 1, internal resistance implausible will delay your vw fault. |
12903 Possible Causes:
12903 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Injector Circuit Malfunction - Cylinders
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 12903 Code
- Inspect all the connections throttle/pedal position sensor / switch 'f', circuit intermittent
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns