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VW Code 01684

01684 Description And Summary :

The problem is about throttle/pedal position sensor / switch 'd', circuit mechanic will need to check all electrical connections in the camshaft sensor direct ozone reduction catalyst deterioration sensor, circuit intermittent / erratic or change nox sensor heater sense bank 1, circuit intermittent is the final reason of the code.

01684 Possible Causes:

01684 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor A Circuit Low Input
  • Engine Oil Temperature Sensor Malfunction
  • Reverse Input Circuit
  • Injector Circuit Malfunction - Cylinders
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Fuel Rail/System Pressure - Too High

What To Check After Fixing 01684 Code

  • Inspect all the connections pressure sensor for brake boost (g294), short to plus
  • 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