SX4 4WD L4-2.0L (2008)
Air Flow Meter/Sensor: Testing and Inspection
Mass Air Flow (MAF) and Intake Air Temperature (IAT) Sensor On-Vehicle Inspection
Mass Air Flow (MAF) and Intake Air Temperature (IAT)
Sensor On-Vehicle Inspection
NOTE: Before performed this inspection, be sure to read the Precautions of ECM Circuit Inspection.
1. Disconnect MAF and IAT sensor connector.
2. Connect voltmeter to "BLU/RED" wire terminal (2) of MAF and IAT sensor connector (1) disconnected and ground.
3. Turn ON ignition switch and check that voltage is battery voltage.
If not, check if wire harness is open or connection is poor.
4. Turn OFF ignition switch and connect connector to MAF and IAT sensor.
5. Connect special tool between ECM and ECM connector referring to Inspection of ECM and Its Circuits
6. Turn ON ignition switch and check MAF signal voltage between "C01-26" terminal circuit and "C01-27" terminal circuit of special tool.
MAF signal voltage between "C01-26" terminal circuit and "C01-27" terminal circuit of special tool
