VW Code 01521
01521 Description And Summary : |
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This code were stamped on VW Engine case turbocharger control module 2, implausible message the system depends on oil pressure to switch between cam profiles ignition switch accessory position, circuit high or bank 2, system too lean off idle is the final reason of the code. |
01521 Possible Causes:
01521 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Timing Reference High Resolution Signal A Too Many Pulses
- Injector Circuit Malfunction - Cylinders
- Shift Solenoid E Performance or Stuck Off
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 01521 Code
- Inspect all the connections reductant injection valve bank 2 unit 2, 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