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: Turn Signal Switch Circuit

DESCRIPTION The steering sensor receives the turn signal switch information and controls the turn signal lights. WIRING DIAGRAM PROCEDURE 1. READ VALUE USING GTS (a) Read the Data List according to the display on the GTS. Chassis > Steering Angle Sensor > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Turn Signal Switch (Right) Turn signal switch (right) signal OFF or ON OFF: Turn signal switch not in right turn position ON: Turn signal switch in right turn position - Turn Signal Switch (Left) Turn signal switch (left) signal OFF or ON OFF: Turn signal switch not in left turn position ON: Turn signal switch in left turn position - Cornering Light/Front Side Illuminate Light Switch Turn signal switch (full turn) signal OFF or ON OFF: Turn signal switch not in left or right turn position ON: Turn signal switch in left or right full turn position - OK: Normal conditions listed above are displayed...

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE NOTICE: Before replacing the ECM, refer to Service Bulletin. When replacing the millimeter wave radar sensor assembly, always replace it with a new one. If a millimeter wave radar sensor assembly which was installed to another vehicle is used, the information stored in the millimeter wave radar sensor assembly will not match the information from the vehicle and a DTC may be stored...