GSIC - Global Service Information Center

# MASS AIR FLOW METER > ON-VEHICLE INSPECTION

## for Preparation Click here

1. CHECK MASS AIR FLOW METER

1. Check the Data List mass air flow value.

   1. Connect the intelligent tester to the DLC3.

   2. Turn the ignition switch ON and the intelligent tester main switch ON.

   3. Enter the following menus: Powertrain / Engine / Data List / MAF.

   4. Blow air into the MAF meter, and check that the MAF value fluctuates.
      If the result is not as specified, check the MAF meter (Click here), or wiring and ECM.