Toyota Corolla Cross: Lost Communication with ECM/PCM "A" Missing Message (U010087,...,U110387)

Toyota Corolla Cross (2022-2024) Service Manual / Audio & Visual & Telematics / Park Assist / Monitoring / Parking Support Brake System / Lost Communication with ECM/PCM "A" Missing Message (U010087,...,U110387)

DESCRIPTION

These DTCs are stored if there is a malfunction in the CAN communication system connected to the clearance warning ECU assembly.

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	The clearance warning ECU assembly is unable to receive data from the ECM for 5.12 seconds or more	CAN communication system
U012587	Lost Communication with Multi-axis Acceleration Sensor Module Missing Message	The clearance warning ECU assembly is unable to receive data from the airbag sensor assembly for 0.72 seconds or more	CAN communication system
U012687	Lost Communication with Steering Angle Sensor Module Missing Message	The clearance warning ECU assembly is unable to receive data from the steering sensor for 5.04 seconds or more	CAN communication system
U012987	Lost Communication with Brake System Control Module Missing Message	The clearance warning ECU assembly is unable to receive data from the skid control ECU for 5 seconds or more	CAN communication system
U014087	Lost Communication with Body Control Module Missing Message	The clearance warning ECU assembly is unable to receive data from the main body ECU (multiplex network body ECU) for 5 seconds or more	CAN communication system
U015587	Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message	The clearance warning ECU assembly is unable to receive data from the combination meter assembly for 5 seconds or more	CAN communication system
U016487	Lost Communication with HVAC Control Module Missing Message	The clearance warning ECU assembly is unable to receive data from the air conditioning amplifier assembly for 5 seconds or more	CAN communication system
U023387	Lost Communication with Side Obstacle Detection Control Module "B" Missing Message	The clearance warning ECU assembly is unable to receive data from the blind spot monitor sensor LH (B) for 5 seconds or more	CAN communication system
U029387	Lost Communication with Hybrid/EV Powertrain Control Module Missing Message	Lost communication with hybrid vehicle control ECU	CAN communication system
U110387	Lost Communication with Stop and Start Control Module Missing Message	No communication between the engine stop and start ECU and the clearance warning ECU assembly for 5 second.	CAN communication system

PROCEDURE

CLEAR DTC

(a) Clear the DTCs.

Body Electrical > Clearance Warning > Clear DTCs

2.	CHECK FOR DTC

(a) Check for DTCs.

Body Electrical > Clearance Warning > Trouble Codes

Result	Proceed to
U010087, U012587, U012687, U012987, U014087, U015587, U016487, U023387, U029387 or U110387 is output	A
DTCs are not output	B
None of the above conditions are met	C

GO TO CAN COMMUNICATION SYSTEM

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

USE SIMULATION METHOD TO CHECK

GO TO DTC CHART

SEE MORE:

HO2S Heater Control Bank 1 Sensor 1 Circuit Short to Battery (P003012,P003013,P101A9E)

DESCRIPTION The air fuel ratio sensor (sensor 1) generates current that corresponds to the actual air fuel ratio. This sensor current is used to provide the ECM with feedback so that it can control the air fuel ratio. The ECM determines the deviation from the stoichiometric air fuel ratio level, and

Relay

On-vehicle InspectionON-VEHICLE INSPECTION PROCEDURE 1. INSPECT HEADLIGHT RELAY LH (a) Check the operation of the headlight relay LH. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition

Toyota Corolla Cross: Lost Communication with ECM/PCM "A" Missing Message (U010087,...,U110387)

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Lost Communication with Side Obstacle Detection Control Module "A" (ch2) Missing Message (U117787,U117887)

Rear View Monitor System

Precaution

SEE MORE:

HO2S Heater Control Bank 1 Sensor 1 Circuit Short to Battery (P003012,P003013,P101A9E)

Relay