Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM0000017FG005X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: 2UZ-FE ENGINE CONTROL SYSTEM: MASS AIR FLOW METER: INSPECTION; 2007 MY LX470 [08/2006 -        ]

INSPECTION

1. INSPECT MASS AIR FLOW METER

(a) Check the output voltage.

(1) Apply battery voltage across terminals 1 (+B) and 2 (E2G).

(2) Using a voltmeter, connect the positive (+) tester probe to terminal 3 (VG), and negative (-) tester probe to terminal 2 (E2G).

(3) Blow air into the MAF meter, and check that the voltage fluctuates.

(b) Measure the resistance between terminals 4 (THA) and 5 (E2).

Standard resistance:

Condition

Specified Condition

-20°C (-4°F)

12.5 to 16.9 kΩ

20°C (68°F)

2.19 to 2.67 kΩ

60°C (140°F)

0.50 to 0.68 kΩ

If the result is not as specified, replace the MAF meter.