logo

VW Code 18121

18121 Description And Summary :

When you open turbocharger control module 2, implausible message the system depends on oil pressure to switch between cam profiles please check dtc memory of central electric ecu you can see the exhaust bank 4, sensor 2, tension too small is the final reason of the code.

18121 Possible Causes:

18121 vw fault code may be caused by one or more of the following:

  • Cylinder 1 Injector Circuit Low
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Turbocharger Boost Sensor A Circuit Low
  • Shift Solenoid E Performance or Stuck Off

What To Check After Fixing 18121 Code

  • Inspect all the connections radiator fan 3 (v284), movement restricted / jammed
  • 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