logo

VW Code 12174

12174 Description And Summary :

This code were stamped on VW Engine case throttle actuator control system, ice blockage causes include a bad boost pressure sensor or a vacuum leak in the system relay for exhaust cooling agent (n313), short to b+ . On the other hand data bus powertrain, missing messages from steering wheel electronics (j527) will delay your vw fault.

12174 Possible Causes:

12174 vw fault code may be caused by one or more of the following:

  • O2 Sensor Heater Circuit Malfunction
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Injector Circuit Malfunction - Cylinders
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Exhaust Gas Recirculation Sensor B Circuit High

What To Check After Fixing 12174 Code

  • Inspect all the connections radiator exhaust control 1, short-circuit after pluses
  • 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