Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY

HINT:

Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.

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(a) Read the value of Data List item "Mass Air Flow Sensor" using the Techstream.

NOTICE:

Perform the inspection of the mass air flow meter sub-assembly while it is installed to the air cleaner cap sub-assembly (installed to the vehicle).

(1) Connect the Techstream to the DLC3.

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

(3) Turn the Techstream on.

(4) Put the engine in Inspection Mode (Maintenance Mode).

(5) Start the engine.

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

(7) According to the display on the Techstream, read the Data List when the engine is running.

Standard Condition:

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

If the result is within the specified range, remove and inspect the mass air flow meter sub-assembly.

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2. PERFORM INITIALIZATION

(a) Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.

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