Air Flow Meter/Sensor: Testing and Inspection

ON-VEHICLE INSPECTION

Measure resistance of volume air flow meter.
- Disconnect the connector from the volume air flow meter.








- Using an ohmmeter. measure the resistance between each terminal.





If not within specification. replace the volume air flow meter.
- Reconnect the volume air flow meter connector.

OFF-VEHICLE INSPECTION

Measure resistance of volume air flow meter.





- Using an ohmmeter, measure the resistance between each terminal by moving the measuring plate.

HINT: Resistance between terminals E2 and VS will change in a wave pattern as the measuring plate slowly opens.





If not within specification, replace the volume air flow meter.