Toyota Yaris: Can Communication System / Utility

How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT NOTICE: Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output...

Terminals Of Ecu

TERMINALS OF ECU NOTICE: After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal...

Other information:

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Parts Location

PARTS LOCATION ILLUSTRATION *1 WINDSHIELD WIPER MOTOR ASSEMBLY *2 WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY *3 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY - WIPER FUSE - WASHER FUSE - WIPER RELAY *4 RAIN SENSOR ILLUSTRATION *1 STEERING WHEEL SWITCH HOUSING *2 WINDSHIELD WIPER SWITCH ASSEMBLY *3 STEERING SENSOR *4 WINDSHIELD WIPER RELAY ASSEMBLY *5 MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *6 POWER DISTRIBUTION BOX ASSEMBLY - WIPER RR FUSE - ECU-IGR NO...

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Lost Communication With ECM/PCM "A" Missing Message (U010087,U012987,U014087)

DESCRIPTION These DTCs are stored when a malfunction occurs in the CAN communication circuit. DTC No. Detection Item DTC Detection Condition Trouble Area U010087 Lost Communication With ECM/PCM "A" Missing Message When the stereo component equalizer assembly detects a CAN communication malfunction in the engine system for 1 second or more continuously 3 seconds after the ignition switch is turned to ON* CAN communication system U012987 Lost Communication With Brake System Control Module Missing Message When the stereo component equalizer assembly detects a CAN communication malfunction in the brake system for 1 second or more continuously 3 seconds after the ignition switch is turned to ON* CAN communication system U014087 Lost Communication with Body Control Module Missing Message When the stereo component equalizer assembly detects a CAN communication malfunction in the main body ECU for 3 seconds or more continuously 3 seconds after the ignition switch is turned to ON* CAN communication system HINT: *: Malfunction monitoring is not performed under the following conditions, in order to prevent erroneous detection...