Component Testing

Multifunction Intake Air Sensor

1. Test the Intake Air Humidity Sensor by varying the air humidity in the intake duct near the sensor, while observing the scan tool Intake Air Humidity Sensor parameter. The parameter should change and be within 5 - 95%.
   • If not within 5 - 95%, or the parameter does not change. 

     Replace the K20 Engine Control Module.

   • If within 5 - 95% and the parameter does change 
2. All OK.