DTC U0129-87: Lost Communication With Brake System Control Module 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 [12/2022 - 03/2023]: Description

These DTCs are stored when the CAN communication system is malfunctioning.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	DTC Output from	Priority
U0129-87	Lost Communication With Brake System Control Module Missing Message	The vehicle approaching speaker controller does not receive data from the No. 2 skid control ECU (brake actuator assembly) for approximately 10 seconds or more.	CAN communication system No. 2 skid control ECU (brake actuator assembly)	Acoustic Vehicle Alerting System	B
U0140-87	Lost Communication with Body Control Module Missing Message	The vehicle approaching speaker controller does not receive data from the main body ECU (multiplex network body ECU) for approximately 10 seconds or more.	CAN communication system Main body ECU (multiplex network body ECU)	Acoustic Vehicle Alerting System	B
U0293-87	Lost Communication with Hybrid/EV Powertrain Control Module Missing Message	The vehicle approaching speaker controller does not receive data from the hybrid vehicle control ECU for approximately 10 seconds or more.	CAN communication system Hybrid vehicle control ECU	Acoustic Vehicle Alerting System	B