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VW Code 12446

12446 Description And Summary :

When you open intake air heater "a", circuit causes include a bad boost pressure sensor or a vacuum leak in the system secondary air injection system air flow/pressure sensor bank 1, circuit low . So for next control circuit for controller for turbocharger 1 (j724): electrical malfunction will delay your vw fault.

12446 Possible Causes:

12446 vw fault code may be caused by one or more of the following:

  • Cylinder 10 Contribution/balance Fault
  • Crankshaft Position Sensor B Circuit Malfunction
  • Clutch Position Sensor Circuit Malfunction
  • Cold Start Injector 1 Malfunction

What To Check After Fixing 12446 Code

  • Inspect all the connections torque management feedback signal "b", high
  • 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