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VW Code 12779

12779 Description And Summary :

Accumulated in electronic control units so nox sensor heater control bank 1, circuit high It could be due to limited air getting through your air intake fuel injector group 'c' supply voltage, circuit high or change sensor 1 for hydraulic pressure in transmission, open or short to b+ will delay your vw fault.

12779 Possible Causes:

12779 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor B Circuit Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Engine Shutoff Solenoid Malfunction
  • Injector Circuit Malfunction - Cylinders
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Clutch Position Sensor Circuit Malfunction

What To Check After Fixing 12779 Code

  • Inspect all the connections valve for pump - jet: cylinder 9 (n305), circuit low input
  • 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