Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Lost Communication With Steering Angle Sensor Module (U0126,U0129,U023A,U0293)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Steering / Power Assist Systems / Power Steering System(for Hv Model) / Lost Communication With Steering Angle Sensor Module (U0126,U0129,U023A,U0293)

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

Terminals Of Ecu

Steering Column

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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Can Communication System(for Hv Model): Check Bus 2 Lines for Short Circuit
DESCRIPTION There may be a short circuit between the CAN main bus lines and/or CAN branch lines when the resistance between terminals 18 (CA4H) and 17 (CA4L) of the central gateway ECU (network gateway ECU) is below 54 Ω. Symptom Trouble Area Resistance between terminals 18 (CA4H) and 17 (CA4L) of ...

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Lost Communication With Steering Angle Sensor Module (U0126,U0129,U023A,U0293)

Terminals Of Ecu

Steering Column

See More:

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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual