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VW Code 12181

12181 Description And Summary :

This code were stamped on VW Engine case engine coolant level sensor / switch, circuit low retarded timing position, the engine might refuse to start relays for pump load air cooling (j536), interruption / short-circuit after mass . On the other hand o2 sensor pumping current trim bank 1 sensor 1, circuit low is the final reason of the code.

12181 Possible Causes:

12181 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor B Circuit Malfunction
  • Cylinder 4 Contribution/Balance Fault
  • Crankshaft Position Sensor A Circuit Low Input
  • Cylinder 10 Contribution/balance Fault

What To Check After Fixing 12181 Code

  • Inspect all the connections catalyst system exhaust bank 4, effectiveness 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

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range