POWER ASSIST SYSTEMS: POWER STEERING SYSTEM(for HV Model): U0126,U0129,U023A,U0293; Lost Communication With Steering Angle Sensor Module; 2019 - 2022 MY Avalon HV [04/2018

Last Modified: 08-21-2023	6.11:8.1.0	Doc ID: RM100000001B7AC
Model Year Start: 2019	Model: Avalon HV	Prod Date Range: [04/2018 - ]
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM(for HV Model): U0126,U0129,U023A,U0293; Lost Communication With Steering Angle Sensor Module; 2019 - 2022 MY Avalon HV [04/2018 - ]

DTC

U0126

Lost Communication With Steering Angle Sensor Module

DTC

U0129

Lost Communication with Brake System Control Module

DTC

U023A

Lost Communication with Front Camera Module

DTC

U0293

Lost Communication with Hybrid Control Module

DESCRIPTION

The power steering ECU (rack and pinion power steering gear assembly) receives signals from the hybrid vehicle control ECU, steering sensor, skid control ECU (brake booster with master cylinder assembly) and forward recognition camera via CAN communication.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Warning Indicate	Return-to-normal Condition	Note
U0126	Lost Communication With Steering Angle Sensor Module	Lost communication with steering angle sensor	CAN communication system Steering angle sensor Rack and pinion power steering gear assembly	EPS warning light: Comes on	The ECU judges the system has returned to normal or the power switch is turned on (IG) again	-
U0129	Lost Communication with Brake System Control Module	Lost communication with skid control ECU (Brake booster with master cylinder assembly)	CAN communication system Skid control ECU (Brake booster with master cylinder assembly) Rack and pinion power steering gear assembly	EPS warning light: Comes on	The ECU judges the system has returned to normal or the power switch is turned on (IG) again	-
U023A	Lost Communication with Front Camera Module	Lost communication with forward recognition camera	CAN communication system Forward recognition camera Rack and pinion power steering gear assembly	EPS warning light: Does not come on	The ECU judges the system has returned to normal or the power switch is turned on (IG) again	-
U0293	Lost Communication with Hybrid Control Module	Lost communication with hybrid vehicle control ECU	CAN communication system Hybrid vehicle control ECU	EPS warning light: Does not come on	The ECU judges the system has returned to normal or the power switch is turned on (IG) again	-

PROCEDURE

1.	GO TO CAN COMMUNICATION SYSTEM

(a) Go to CAN communication system.

Click here

END