Component Testing
- Ignition OFF, disconnect the harness connector at the B75B mass air flow/intake air temperature sensor.
- Test the IAT sensor by varying the sensor temperature while monitoring the sensor resistance. Compare the readings with the Temperature Versus Resistance
. The resistance values should be in range of the table values.
- If not within the specified range, B75B mass air flow/intake air temperature sensor.
NOTE:
A thermometer can be used to test the sensor off the vehicle.