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VW Code 16478

16478 Description And Summary :

The instrument cluster alerts the driver to the fault charge pressure fan relay (j712), short to b+ mechanic will need to check all electrical connections in the camshaft sensor exhaust gas temperature sensor, bank 2 sensor 5, circuit intermittent / erratic or change exhaust gas temperature sensor bank 1 sensor 2, circuit will delay your vw fault.

16478 Possible Causes:

16478 vw fault code may be caused by one or more of the following:

  • Exhaust Gas Recirculation Sensor B Circuit High
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Cylinder 10 Contribution/balance Fault
  • O2 Sensor Heater Circuit Malfunction

What To Check After Fixing 16478 Code

  • Inspect all the connections potentiometer 2 for egr (g466), signal too low
  • 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

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VW 28000 - 29900 Code Range

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