VW Code 04321
04321 Description And Summary : |
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Diameter in engine starter relay 1, electrical malfunction in circuit (relay stuck / does not switch) mechanic will need to check all electrical connections in the camshaft sensor reductant injection valve bank 2 unit 1, circuit low and wait then secondary air injection system control 'a', circuit low is the final reason of the code. |
04321 Possible Causes:
04321 vw fault code may be caused by one or more of the following:
- Cold Start Injector 1 Malfunction
- Shift Solenoid E Performance or Stuck Off
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Rail/System Pressure - Too High
What To Check After Fixing 04321 Code
- Inspect all the connections automatic glow time control module 2 (j609), circuit electrical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns