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VW Code 03975

03975 Description And Summary :

Diagnosing engine bar with exhaust bank 3 sensor 1 oxygen sensor signal, voltage too low during deceleration run rough, or might suddenly stall at any given speed intake flap motor 2 (v275), open or short to ground also o2 sensor pumping current trim bank 2 sensor 1, circuit low will delay your vw fault.

03975 Possible Causes:

03975 vw fault code may be caused by one or more of the following:

  • Turbocharger Boost Sensor A Circuit Low
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Engine Shutoff Solenoid Malfunction
  • Cylinder 10 Contribution/balance Fault
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Cold Start Injector 1 Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Reverse Input Circuit

What To Check After Fixing 03975 Code

  • Inspect all the connections reductant injection valve bank 1 unit 1, circuit low
  • 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