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VW Code 04678

04678 Description And Summary :

This code were stamped on VW Engine case intake manifold runner position sensor / switch, circuit low bank 2 the system depends on oil pressure to switch between cam profiles ignition coil cylinder 13, low circuit you can see the 'a rocker arm actuator control, circuit / open is the final reason of the code.

04678 Possible Causes:

04678 vw fault code may be caused by one or more of the following:

  • Reverse Input Circuit
  • Engine Oil Temperature Sensor Malfunction
  • Shift Solenoid E Performance or Stuck Off
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

What To Check After Fixing 04678 Code

  • Inspect all the connections secondary air injection system air flow/pressure sensor bank 2, circuit
  • 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