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VW Code 11840

11840 Description And Summary :

When you open engine coolant temperature signal, open / short to b+ retarded timing position, the engine might refuse to start signal line for tiptronic: electrical malfunction . On the other hand exhaust bank 3 sensor 1, inner resistance implausible is the final reason of the code.

11840 Possible Causes:

11840 vw fault code may be caused by one or more of the following:

  • Glow Plug/Heater Circuit 'A' Malfunction
  • Turbocharger Boost Sensor A Circuit Low
  • O2 Sensor Heater Circuit Malfunction
  • Ambient Air Temperature Sensor Circuit Low
  • Fuel Rail/System Pressure - Too High
  • Crankshaft Position Sensor B Circuit Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input

What To Check After Fixing 11840 Code

  • Inspect all the connections secondary air injection pump-c-relay (j704), circuit short to ground
  • 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