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VW Code 03806

03806 Description And Summary :

When you open nox sensor heater sense bank 1, circuit low It could be due to limited air getting through your air intake torque management feedback signal "b" or please check dtc memory of engine ecu will delay your vw fault.

03806 Possible Causes:

03806 vw fault code may be caused by one or more of the following:

  • Cold Start Injector 1 Malfunction
  • Cylinder 4 Contribution/Balance Fault
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Injector Circuit Malfunction - Cylinders

What To Check After Fixing 03806 Code

  • Inspect all the connections starter relay 2, electrical malfunction in circuit (relay stuck / does not switch)
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range