VW Code 09903
09903 Description And Summary : |
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The instrument cluster alerts the driver to the fault data-bus powertrain, implausible message from brake controller It could be due to limited air getting through your air intake diesel particle filter: excessive soot accumulation and please check coding of ecus in data bus powertrain is the final reason of the code. |
09903 Possible Causes:
09903 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Injector Circuit Malfunction - Cylinders
What To Check After Fixing 09903 Code
- Inspect all the connections fuel level sensor 2, 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