Toyota Yaris: Power Steering System / Lost Communication with Steering Angle Sensor Module Missing Message (U012687,U010087,U012987,U014087,U023A87)

Toyota Yaris XP210 (2020-2023) Reapir and Service Manual / Steering / Power Assist Systems / Power Steering System / Lost Communication with Steering Angle Sensor Module Missing Message (U012687,U010087,U012987,U014087,U023A87)

DESCRIPTION

The power steering ECU assembly receives signals from the steering sensor, skid control ECU (brake actuator assembly), forward recognition camera, ECM and clearance warning ECU assembly via CAN communication.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Warning Indicate	Return-to-normal Condition	Note
U010087	Lost Communication With ECM/PCM "A" Missing Message	Lost communication with ECM	CAN communication system ECM	EPS warning light: Does not come on	After normal confirmation	-
U012687	Lost Communication with Steering Angle Sensor Module Missing Message	Lost communication with steering sensor	CAN communication system Steering sensor	EPS warning light: Does not come on	After normal confirmation	-
U012987	Lost Communication with Brake System Control Module Missing Message	Lost communication with skid control ECU (brake booster with master cylinder assembly)	CAN communication system Skid control ECU (Brake booster with master cylinder assembly)(for TMC Made HV Model) Skid control ECU (Brake actuator assembly)(for TMMF Made HV Model)	EPS warning light: Does not come on	After normal confirmation	-
U014087	Lost Communication with Body Control Module Missing Message	Lost communication with main body ECU (multiplex network body ECU)	CAN communication system Main body ECU (multiplex network body ECU)	EPS warning light: Does not come on	After normal confirmation	-
U023A87	Lost Communication with Image Processing Module "A" Missing Message	Lost communication with forward recognition camera	CAN communication system Forward recognition camera	EPS warning light: Does not come on	After normal confirmation	w/ Toyota Safety Sense

PROCEDURE

1.	GO TO CAN COMMUNICATION SYSTEM

(a) Go to CAN communication system.

Click here

END

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