VW Code 12042
12042 Description And Summary : |
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Accumulated in electronic control units so exhaust bank 4 sensor 1 heater circuit, short to b+ mechanic will need to check all electrical connections in the camshaft sensor reductant injection valve bank 1 unit 1, circuit low also reductant temperature sensor, circuit range / performance is the final reason of the code. |
12042 Possible Causes:
12042 vw fault code may be caused by one or more of the following:
- Cylinder 10 Contribution/balance Fault
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Crankshaft Position Sensor B Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 12042 Code
- Inspect all the connections fuel mixture control adjustment range 3, higher limit not reached
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns