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 (2020-2025) Reapir and Service Manual: Lost Communication With ECM/PCM "A" Missing Message (U010087,U010187,U012687,U012987,U014087,U015587)

DESCRIPTION When a malfunction is detected between various ECUs and sensors, these DTCs are stored. DTC No. Detection Item DTC Detection Condition Trouble Area U010087 Lost Communication With ECM/PCM "A" Missing Message When the ignition switch is ON for 3 seconds or more, and the vehicle is being driven at a speed of 5 km/h (3mph) or more, a communication malfunction between the forward recognition camera and the ECM continues for 2 seconds or more...

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Brake Switch "A" Circuit Open (P057113)

DESCRIPTION When the brakes are applied by the dynamic radar cruise control system, the skid control ECU (brake actuator assembly) operates the stop light switch assembly (stop light control relay) to illuminate the stop lights. If the ECM receives a signal from the skid control ECU (brake actuator assembly) indicating a malfunction of the stop light control relay, DTC P057113 is stored...