Air Temperature Sensor ( Ambient / Intake ): Testing and Inspection

MAF and IAT Sensor On-Vehicle Inspection

NOTE:

Before performing this inspection, be sure to read the "Precautions for ECM Circuit Inspection" under Service Precautions Precautions for Engine.

Check that MAF sensor signal and IAT sensor signal are output properly. Pinout Values and Diagnostic Parameters

If faulty condition is found, check the following points:

- Wire harness and connections
- MAF and IAT sensor Inspection