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VW Code 03979

03979 Description And Summary :

This code were stamped on VW Engine case control module 1 for cooling fan, short circuit It could be due to limited air getting through your air intake oxygen (lambda) sensor b2 s1, pump current, short to b+ and bank 2, cam shaft position sensor, discharge opening (g301), interruption / short-circuit to pluses is the final reason of the code.

03979 Possible Causes:

03979 vw fault code may be caused by one or more of the following:

  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Fuel Rail/System Pressure - Too High
  • Shift Solenoid E Performance or Stuck Off
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Engine Oil Temperature Sensor Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses

What To Check After Fixing 03979 Code

  • Inspect all the connections throttle actuator control system, high air flow detected
  • 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