Inspection [08/2015 - ]: Procedure

*a	Component without harness connected (Mass Air Flow Meter)
	Air

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Connect the positive (+) lead to terminal 1 (+B) and the negative (-) lead to terminal 2 (E2).
   NOTE:

   While using the battery during inspection, do not bring the positive and negative tester probes too close to each other as a short circuit may occur.

2. Using a voltmeter, connect the positive (+) tester probe to terminal 3 (VG) and the negative (-) tester probe to terminal 2 (E2).
3. Blow air into the mass air flow meter assembly and check that the voltage fluctuates.

   OK

   The voltage changes.

   If the result is not as specified, replace the mass air flow meter assembly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK

There is no foreign matter.

If the result is not as specified, replace the mass air flow meter assembly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Using an air blow gun, clean the hole of the mass air flow meter assembly by applying approximately 10 intermittent bursts of air to the airflow hole at a pressure of approximately 392 to 981 kPa (4.0 to 10.0kgf/cm² , 57 to 142 psi).

   HINT: 

   After performing cleaning, check the intake air temperature sensor (thermistor) resistance.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   TEXT IN ILLUSTRATION
   
   

   *a	Air Blow Duration
   *b	3 to 6 Seconds
   *c	1 Second
   *d	Air Blowing
   *e	Air Stopped

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   4 (THA) - 5 (E2)	Always	0.48 to 17.7 kΩ

   If the result is not as specified, replace the mass air flow meter assembly.