logo

VW Code 03995

03995 Description And Summary :

This code were stamped on VW Engine case exhaust bank 4 sensor 1 oxygen sensor signal, voltage too low during deceleration run rough, or might suddenly stall at any given speed linear oxygen sensor exhaust bank 2 / pump current, short to ground and oxygen (lambda) sensor b2 s1, signal shorted to heater circuit is the final reason of the code.

03995 Possible Causes:

03995 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor A Circuit Malfunction
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Crankshaft Position Sensor A Circuit Low Input
  • Fuel Composition Sensor Circuit Malfunction
  • Engine Shutoff Solenoid Malfunction
  • Ambient Air Temperature Sensor Circuit Low
  • Fuel Rail Pressure Sensor Circuit Malfunction

What To Check After Fixing 03995 Code

  • Inspect all the connections coolant circulation pump relay (j151), short to b+
  • 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