DTC U0101-87: Lost Communication with TCM Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0293-87: Lost Communication with Hybrid/EV Powertrain Control Module Missing Message [11/2023 - ]: Description

U0101-87: The inner rear view mirror assembly receives signals from the hybrid vehicle control ECU*1 or ECM*2 via CAN communication.
U0140-87: The inner rear view mirror assembly receives signals from the main body ECU (multiplex network body ECU) via CAN communication.
U0293-87: The inner rear view mirror assembly receives signals from the hybrid vehicle control ECU*1 or ECM*2 via CAN communication.
1. *1: for HV Model
2. *2: for Gasoline Model

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	DTC Output from	Priority
U0101-87	Lost Communication with TCM Missing Message	No communication between inner rear view mirror assembly and hybrid vehicle control ECU1 or ECM2 for 10 seconds or more. (1-trip detection logic*3)	CAN communication system Inner rear view mirror assembly Hybrid vehicle control ECU1 ECM2 Wire harness or connector	Digital Rear-View Mirror	B
U0140-87	Lost Communication with Body Control Module Missing Message	No communication between inner rear view mirror assembly and main body ECU (multiplex network body ECU) for 10 seconds or more. (1-trip detection logic*3)	CAN communication system Inner rear view mirror assembly Main body ECU (multiplex network body ECU) Wire harness or connector	Digital Rear-View Mirror	B
U0293-87	Lost Communication with Hybrid/EV Powertrain Control Module Missing Message	No communication between inner rear view mirror assembly and hybrid vehicle control ECU1 or ECM2 for 10 seconds or more. (1-trip detection logic*3)	CAN communication system Inner rear view mirror assembly Hybrid vehicle control ECU1 ECM2 Wire harness or connector	Digital Rear-View Mirror	B

*1: for HV Model
*2: for Gasoline Model
*3: Only detected while a malfunction is present and the ignition switch is ON.

HINT:

Confirmation procedure

After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing "All Readiness" using the GTS.

Refer to DTC CHECK / CLEAR [11/2023 - ]

Check that the power supply voltage of the inner rear view mirror assembly is 10 V or more.
Turn the ignition switch to ON and wait for 20 seconds or more.