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VW Code 12841

12841 Description And Summary :

The problem is about load signal range / performance it can suddenly lead to a significantly more engine coolant temperature sensor 2 (g83), circuit range / performance or outside temperature sensor 2 (g249), open to b+ is the final reason of the code.

12841 Possible Causes:

12841 vw fault code may be caused by one or more of the following:

  • Ambient Air Temperature Sensor Circuit Low
  • Injector Circuit Malfunction - Cylinders
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Fuel Composition Sensor Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Crankshaft Position Sensor A Circuit Malfunction
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 12841 Code

  • Inspect all the connections oxygen (lambda) sensor b1 s1, signal shorted to heater 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