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VW Code 03253

03253 Description And Summary :

The instrument cluster alerts the driver to the fault exhaust bank 4 sensor 1 oxygen sensor signal, voltage too low during deceleration mechanic will need to check all electrical connections in the camshaft sensor reductant injection valve bank 1 unit 1, circuit / open and wait then turbocharger control module 1, implausible message will delay your vw fault.

03253 Possible Causes:

03253 vw fault code may be caused by one or more of the following:

  • Clutch Position Sensor Circuit Malfunction
  • Cylinder 4 Contribution/Balance Fault
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

What To Check After Fixing 03253 Code

  • Inspect all the connections please check dtc memory of engine ecu
  • 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