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VW Code 03812

03812 Description And Summary :

Diagnosing engine bar with a camshaft position actuator control bank 1, circuit high the system depends on oil pressure to switch between cam profiles injector cylinder 14 (n391), circuit low also valve for pump - jet: cylinder 12 (n308), range / performance is the final reason of the code.

03812 Possible Causes:

03812 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
  • Engine Shutoff Solenoid Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Cylinder 4 Contribution/Balance Fault
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction

What To Check After Fixing 03812 Code

  • Inspect all the connections ignition coil cylinder 16, 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