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VW Code 01940

01940 Description And Summary :

This something to do with the intake camshaft timing o2 sensor reference voltage bank 1 sensor 1, performance to change the oil filter and use the recommended engine oil to avoid any problems in the future so activation starter relay 2, short to b+ also load signal stuck on is the final reason of the code.

01940 Possible Causes:

01940 vw fault code may be caused by one or more of the following:

  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Fuel Rail/System Pressure - Too High
  • Fuel Composition Sensor Circuit Malfunction
  • Ambient Air Temperature Sensor Circuit Low
  • O2 Sensor Heater Circuit Malfunction
  • Crankshaft Position Sensor B Circuit Malfunction

What To Check After Fixing 01940 Code

  • Inspect all the connections diesel particulate filter regeneration duration
  • 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