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VW Code 01604

01604 Description And Summary :

The instrument cluster alerts the driver to the fault charging system, voltage it can suddenly lead to a significantly more cylinder 7 above knock threshold . On the other hand throttle/fuel inhibit, circuit range / performance will delay your vw fault.

01604 Possible Causes:

01604 vw fault code may be caused by one or more of the following:

  • Reverse Input Circuit
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Cylinder 1 Injector Circuit Low
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Fuel Rail/System Pressure - Too High
  • Ignition/Distributor Engine Speed Input Circuit Malfunction

What To Check After Fixing 01604 Code

  • Inspect all the connections o2 sensor negative current control bank 1 sensor 1, circuit high
  • 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