Toyota Yaris: Front Camera System / Lost Communication With ECM/PCM "A" Missing Message (U010087,U010187,U012687,U012987,U014087,U015587)

Toyota Yaris XP210 (2020-2023) Reapir and Service Manual / Engine & Hybrid System / Cruise Control / Front Camera System / Lost Communication With ECM/PCM "A" Missing Message (U010087,U010187,U012687,U012987,U014087,U015587)

DESCRIPTION

When a malfunction is detected between various ECUs and sensors, these DTCs are stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
U010087	Lost Communication With ECM/PCM "A" Missing Message	When the ignition switch is ON for 3 seconds or more, and the vehicle is being driven at a speed of 5 km/h (3mph) or more, a communication malfunction between the forward recognition camera and the ECM continues for 2 seconds or more.	CAN communication system
U010187	Lost Communication with TCM Missing Message	When the ignition switch is ON for 3 seconds or more, a communication malfunction between the forward recognition camera and the ECM continues for approximately 5 seconds or more.	CAN communication system
U012687	Lost Communication with Steering Angle Sensor Module Missing Message	When the ignition switch is ON for 3 seconds or more, a communication malfunction between the forward recognition camera and the steering sensor continues for approximately 1 second or more.	CAN communication system
U012987	Lost Communication with Brake System Control Module Missing Message	When the ignition switch is ON for 3 seconds or more, a communication malfunction between the forward recognition camera and the skid control ECU (brake actuator assembly) continues for approximately 1 second or more.	CAN communication system
U014087	Lost Communication with Body Control Module Missing Message	When the ignition switch is ON for 3 seconds or more, a communication malfunction between the forward recognition camera and the main body ECU (multiplex network body ECU) continues for 5 seconds or more.	CAN communication system
U015587	Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message	When the ignition switch is ON for 3 seconds or more, a communication malfunction between the forward recognition camera and the combination meter assembly continues for 5 seconds or more.	CAN communication system

PROCEDURE

CLEAR DTC

(a) Clear the DTCs.

Chassis > Front Recognition Camera > Clear DTCs

2.	CHECK FOR DTCs

(a) Make sure that the DTC detection conditions are met.

HINT:

If the detection conditions are not met, the system cannot detect the malfunction.

(b) Check for DTCs.

Chassis > Front Recognition Camera > Trouble Codes

Result	Proceed to
DTC U010087, U010187, U012687, U012987, U014087 or U015587 is output	A
DTCs are not output	B
None of the above conditions are met	C

GO TO CAN COMMUNICATION SYSTEM

USE SIMULATION METHOD TO CHECK

GO TO DTC CHART

Front Recognition Camera Heater Malfunction (C1AAE00)

DESCRIPTION The forward recognition camera controls the flow of current to the forward recognition with heater hood sub-assembly. If the forward recognition camera detects a malfunction in the forward recognition with heater hood sub-assembly circuit, it will store this DTC...

Internal Control Module Software Incompatibility Not Programmed (U030051,U030057)

DESCRIPTION The forward recognition camera receives vehicle information from the ECM via CAN communication. DTC U030051 is stored when the vehicle information from the ECM cannot be confirmed...

Other information:

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Toyota Yaris XP210 (2020-2023) Reapir and Service Manual: Parts Location

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