VW Code 09988
09988 Description And Summary : |
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This code were stamped on VW Engine case signal 'door up' not recognized mechanic will need to check all electrical connections in the camshaft sensor particulate trap bank 1, efficiency below threshold . So for next auxiliary engine coolant (ec) pump relay (j496), open or short to ground is the final reason of the code. |
09988 Possible Causes:
09988 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Glow Plug/Heater Circuit 'A' Malfunction
- Cylinder 4 Contribution/Balance Fault
- Fuel Composition Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
What To Check After Fixing 09988 Code
- Inspect all the connections throttle actuator control motor, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns