Sequoia 4WD V8-4.7L (2UZ-FE) (2006)
Air Flow Meter/Sensor: Testing and Inspection
INSPECTION
1. INSPECT OUTPUT VOLTAGE
a. Apply battery voltage across terminals 1 (+B) and 2 (E2G).
b. Connect the positive (+) tester probe to terminal 3 (VG), and the negative (-) tester probe to terminal 2 (E2G).
c. Blow air into the MAF meter, and check if the voltage fluctuates. 2. INSPECT
2. INSPECT RESISTANCE
a. Using an ohmmeter, measure the resistance between terminals 4 (THA) and 5 (E2).
Resistance:
12.5 to 16.9 kOhms at -20 degree C (-4 degree F)
2.19 to 2.67 kOhms at 20 degree C (68 degree F)
0.50 to 0.68 kOhms at 60 degree C (140 degree F)
3. INSPECT MASS AIR FLOW METER
a. If using a intelligent tester:
1. Connect the intelligent tester to the DLC3.
2. Turn the ignition switch to the ON position.
3. Blow air into the MAF meter, and check that the air flow value of the CURRENT DATA changes. If operation is not as specified, check
the MAF meter as well as the wiring and the ECM.