Highlander 4WD V6-3.3L (3MZ-FE) (2004)
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Air Flow Meter/Sensor: Testing and Inspection
INSPECTION
INSPECT MASS AIR FLOW METER
a. Check the output voltage.
1. Apply battery voltage across terminals 1 (+B) and 2 (E2G).
2. Connect the positive (+) tester probe to terminal VG, and negative (-) tester probe to terminal E2G.
3. Blow air into the Mass Air Flow (MAF) meter, and check that the voltage fluctuates.
b. Measure the resistance between terminals 4 (THA) and 5 (E2).
