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VW Code 00456

00456 Description And Summary :

When you open charge pressure fan relay (j712), open run rough, or might suddenly stall at any given speed linear oxygen sensor exhaust bank 2 / pump current, short to b+ and wait then reductant injection valve bank 1 unit 2, circuit low is the final reason of the code.

00456 Possible Causes:

00456 vw fault code may be caused by one or more of the following:

  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Ambient Air Temperature Sensor Circuit Low
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)

What To Check After Fixing 00456 Code

  • Inspect all the connections coolant circulation pump relay (j151), open 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