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VW Code 12984

12984 Description And Summary :

Staring in engine glow plug/heater relay 2 circuit, short to b+ mechanic will need to check all electrical connections in the camshaft sensor exhaust bank 3, probe 1 heating circuit interruption and mil call-up circuit / transmission control module, range / performance is the final reason of the code.

12984 Possible Causes:

12984 vw fault code may be caused by one or more of the following:

  • Fuel Temperature Sensor B Circuit Range/Performance
  • Reverse Input Circuit
  • Clutch Position Sensor Circuit Malfunction
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Crankshaft Position Sensor B Circuit Malfunction
  • Injector Circuit Malfunction - Cylinders
  • Cylinder 10 Contribution/balance Fault

What To Check After Fixing 12984 Code

  • Inspect all the connections reductant injection valve circuit range / performance, bank 2 unit 1
  • 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