Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM100000001H4XS
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 09/2022]
Title: 2ZR-FXE (ENGINE CONTROL): MASS AIR FLOW METER: ON-VEHICLE INSPECTION; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine / Data List / Mass Air Flow Sensor.

Powertrain > Engine > Data List

Tester Display

Mass Air Flow Sensor

(e) Blow air into the mass air flow meter sub-assembly and check that the value of Mass Air Flow Sensor fluctuates.

Air

OK:

The value changes.

If the result is not as specified, clean the mass air flow meter sub-assembly.

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