Toyota Yaris: Manual Transaxle System / Check For Intermittent Problems

How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: The ECM of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, be sure to check that there are no malfunctions in the CAN communication system...

Road Test

ROAD TEST ROAD TEST (a) Check for DTCs. Click here Powertrain > Engine > Trouble Codes HINT: When DTCs are output, perform troubleshooting for each DTC...

Other information:

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Front Door Courtesy Switch Circuit

DESCRIPTION The main body ECU (multiplex network body ECU) detects the condition of the front door courtesy light switch assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Before replacing the main body ECU (multiplex network body ECU), refer to Registration...

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Lost Communication with ECM/PCM "A" Missing Message (U010087,U012087,U012687,U012987,U015187,U015587,U016487,U016887)

DESCRIPTION These DTCs are stored if a CAN communication malfunction occurs between the main body ECU (multiplex network body ECU) and other ECUs. DTC No. Detection Item DTC Detection Condition Trouble Area U010087 Lost Communication with ECM/PCM "A" Missing Message The main body ECU (multiplex network body ECU) does not receive data from the ECM for approximately 10 seconds or more...