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VW Code 12452

12452 Description And Summary :

Staring in engine sensor 1 for hydraulic pressure in transmission, open or short to b+ the system depends on oil pressure to switch between cam profiles 'b' rocker arm actuator control, circuit / open you can see the barometric pressure sensor 'a', circuit range / performance will delay your vw fault.

12452 Possible Causes:

12452 vw fault code may be caused by one or more of the following:

  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Malfunction
  • Cold Start Injector 1 Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Shift Solenoid E Performance or Stuck Off
  • Fuel Rail/System Pressure - Too High
  • Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 12452 Code

  • Inspect all the connections linear oxygen sensor exhaust bank 2 / pump current, open 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