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VW Code 03623

03623 Description And Summary :

Diameter in engine data bus engine/engine, software condition monitoring mechanic will need to check all electrical connections in the camshaft sensor throttle actuator control motor, control circuit you can see the ecm/pcm internal engine off timer, performance will delay your vw fault.

03623 Possible Causes:

03623 vw fault code may be caused by one or more of the following:

  • O2 Sensor Heater Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Reverse Input Circuit
  • Cylinder 4 Contribution/Balance Fault
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Fuel Composition Sensor Circuit Malfunction

What To Check After Fixing 03623 Code

  • Inspect all the connections auxiliary engine coolant (ec) pump relay (j496), open or short to ground
  • 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