Toyota Yaris: Networking / Can Communication System

Networking

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Precaution

PRECAUTION CAN COMMUNICATION SYSTEM TROUBLESHOOTING (a) 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...

Other information:

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...

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

PROBLEM SYMPTOMS TABLE NOTICE: When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored...