VW Code 03665
03665 Description And Summary : |
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The instrument cluster alerts the driver to the fault exhaust bank 4 sensor 1 heater circuit, voltage too low mechanic will need to check all electrical connections in the camshaft sensor malfunction indication light (k83), short to b+ you can see the fuel supply heater, control circuit high will delay your vw fault. |
03665 Possible Causes:
03665 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Fuel Composition Sensor Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 03665 Code
- Inspect all the connections exhaust bank 4, sensor 2, tension too small
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns