Toyota Yaris: Mass Air Flow Meter / Installation

NOTICE:

• If the mass air flow meter has been struck or dropped, replace it.
• If reusing the mass air flow meter, be sure to inspect the O-ring.
• Make sure that the O-ring is not cracked or moved out of place when installing the mass air flow meter.

Inspection

INSPECTION PROCEDURE 1. INSPECT MASS AIR FLOW METER (a) Perform a visual check for any foreign matter on the temperature sensor (thermistor) of the mass air flow meter shown in the illustration...

Relay

InspectionINSPECTION PROCEDURE 1. INSPECT NO.1 ELECTRONIC FUEL INJECTION MAIN RELAY (EFI-MAIN NO. 1) (a) Measure the resistance according to the value(s) in the table below...

Other information:

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Terminals Of Ecu

TERMINALS OF ECU CHECK ECM HINT: The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals are also indicated. The result of checks should be compared with the standard voltage, resistance and waveform for each pair of the terminals as displayed in the Specified Condition column...

Toyota Yaris XP210 (2020-2026) Owner's Manual: Emission Control System

This vehicle is equipped with an emission control system (the catalytic converter is part of this system) that enables the vehicle to comply with existing exhaust emissions requirements. Under U.S. federal law, any modification to the original-equipment emission control system before the first sale and registration of a vehicle is subject to penalties...