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VW Code 12975

12975 Description And Summary :

Diameter in engine reductant temperature sensor, circuit range / performance run rough, or might suddenly stall at any given speed throttle/pedal position sensor 'f', minimum stop performance also secondary air injection system bank 2, high air flow will delay your vw fault.

12975 Possible Causes:

12975 vw fault code may be caused by one or more of the following:

  • O2 Sensor Heater Circuit Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Fuel Rail/System Pressure - Too High
  • Reverse Input Circuit
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Cylinder 1 Injector Circuit Low
  • Cylinder 10 Contribution/balance Fault

What To Check After Fixing 12975 Code

  • Inspect all the connections actuator supply voltage 'c', circuit / open
  • 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