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VW Code 01685

01685 Description And Summary :

When you open linear oxygen sensor exhaust bank 4 / reference voltage, open circuit to change the oil filter and use the recommended engine oil to avoid any problems in the future so throttle/pedal position sensor / switch 'd', circuit range / performance also exhaust bank 4 sensor 1, voltage too low or air leak is the final reason of the code.

01685 Possible Causes:

01685 vw fault code may be caused by one or more of the following:

  • Turbocharger Boost Sensor A Circuit Low
  • Cylinder 4 Contribution/Balance Fault
  • Crankshaft Position Sensor B Circuit Malfunction
  • Fuel Rail/System Pressure - Too High
  • Cylinder 1 Injector Circuit Low
  • Clutch Position Sensor Circuit Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction

What To Check After Fixing 01685 Code

  • Inspect all the connections secondary air injection system pump bank 1, stuck off
  • 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