Toyota Corolla Cross: Lost Communication with ECM/PCM "A" Missing Message (U010087,U012687,U012987,U014087,U016387,U029387)

Toyota Corolla Cross (2022-2024) Service Manual / Audio & Visual & Telematics / Park Assist / Monitoring / Parking Assist Monitor System / Lost Communication with ECM/PCM "A" Missing Message (U010087,U012687,U012987,U014087,U016387,U029387)

DESCRIPTION

These DTCs are stored if there is a malfunction in the CAN communication system connected to the parking assist ECU.

HINT:

If CAN communication system DTCs are stored, they may also be stored in other systems.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
U010087	Lost Communication with ECM/PCM "A" Missing Message	Lost communication with ECM	CAN communication system
U012687	Lost Communication with Steering Angle Sensor Module Missing Message	Lost communication with steering sensor	CAN communication system
U012987	Lost Communication with Brake System Control Module "A" Missing Message	for HEV Model: Lost communication with No. 2 skid control ECU (brake actuator assembly) for Gasoline Model: Lost communication with skid control ECU (brake actuator assembly)	CAN communication system
U014087	Lost Communication with Body Control Module Missing Message	Lost communication with main body ECU (multiplex network body ECU)	CAN communication system
U016387	Lost Communication with Navigation Control Module Missing Message	Lost communication with radio and display receiver assembly	CAN communication system
U029387	Lost Communication with Hybrid/EV Powertrain Control Module Missing Message	Lost communication with hybrid vehicle control ECU	CAN communication system

PROCEDURE

CLEAR DTC

(a) Clear the DTCs.

Chassis > Rear Camera > Clear DTCs

2.	CHECK FOR DTC

(a) Check for DTCs.

Chassis > Rear Camera > Trouble Codes

HINT:

If CAN communication system DTCs are stored, they may also be stored in other systems.
If the CAN communication system has been inspected and repaired in other systems, the DTCs will not be output when rechecking for DTCs.
If these DTCs are output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even though the DTC was not output when rechecking for DTCs.
Click here

Result	Proceed to
DTCs are not output	A
DTCs are output	B

USE SIMULATION METHOD TO CHECK

GO TO CAN COMMUNICATION SYSTEM

for HEV Model:
Click here
for Gasoline Model:
Click here

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Toyota Corolla Cross: Lost Communication with ECM/PCM "A" Missing Message (U010087,U012687,U012987,U014087,U016387,U029387)

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