VW Code 09421
09421 Description And Summary : |
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When you open power supply (b+) terminal 15, low voltage mechanic will need to check all electrical connections in the camshaft sensor speed signal error message of the abs controller you can see the a/c refrigerant distribution valve control, circuit high is the final reason of the code. |
09421 Possible Causes:
09421 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Cold Start Injector 1 Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Fuel Rail/System Pressure - Too High
- Crankshaft Position Sensor A Circuit Malfunction
What To Check After Fixing 09421 Code
- Inspect all the connections automatic glow time control relay 2, 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