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VW Code 03709

03709 Description And Summary :

The instrument cluster alerts the driver to the fault intake air heater "a", circuit high causes include a bad boost pressure sensor or a vacuum leak in the system accelerator position sensor 1/2 (g79) + (g185), implausible signal and wait then rough road / engine torque signal from abs; electrical malfunction will delay your vw fault.

03709 Possible Causes:

03709 vw fault code may be caused by one or more of the following:

  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • O2 Sensor Heater Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Engine Oil Temperature Sensor Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)

What To Check After Fixing 03709 Code

  • Inspect all the connections vehicle speed signal, error message from instrument cluster
  • 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