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: Main Body ECU Communication Stop Mode

DESCRIPTION Detection Item Symptom Trouble Area Main Body ECU Communication Stop Mode Communication stop for "Main Body" is indicated on the "Communication Bus Check" screen of the GTS. Click here Main body ECU (multiplex network body ECU) main line or connector Power source circuit of main body ECU (multiplex network body ECU) or power distribution box assembly Main body ECU (multiplex network body ECU) or power distribution box assembly ground circuit Main body ECU (multiplex network body ECU) or power distribution box assembly WIRING DIAGRAM CAUTION / NOTICE / HINT CAUTION: When performing the confirmation driving pattern, obey all speed limits and traffic laws...

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Supply Voltage Circuit Circuit Voltage Out of Range (C123A1C)

DESCRIPTION When a malfunction has occurred in the power source circuit, the AWD ECU assembly stores DTC C123A1C. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory C123A1C Supply Voltage Circuit Circuit Voltage Out of Range At a vehicle speed of 3 km/h (2 mph) or more, the IG1 terminal voltage is less than 9...