POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Type B): U0100,U0126,U0129,U023A,U0293; Lost Communication with ECM / PCM "A"; 2022 - 2024 MY RAV4 RAV4 HV [12/2021

Last Modified: 01-30-2024	6.11:8.1.0	Doc ID: RM10000000208SI
Model Year Start: 2022	Model: RAV4	Prod Date Range: [12/2021 - ]
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Type B): U0100,U0126,U0129,U023A,U0293; Lost Communication with ECM / PCM "A"; 2022 - 2024 MY RAV4 RAV4 HV [12/2021 - ]

DTC

U0100

Lost Communication with ECM / PCM "A"

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 Powertrain Control Module

DESCRIPTION

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Warning Indicate	Return-to-normal Condition	Note
U0100	Lost Communication with ECM / PCM "A"	Lost communication with ECM	CAN communication system ECM Rack and pinion power steering gear assembly	EPS warning light: When an error occurs during steering assist, the warning light does not illuminate. For errors that occur before assist (at the time of the decision to start assist), the warning light illuminates.	The ECU judges the system has returned to normal	-
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	-
U0129	Lost Communication with Brake System Control Module	for Gasoline Model: Lost communication with skid control ECU (Brake actuator assembly) for HV Model: Lost communication with No. 2 skid control ECU (brake actuator assembly)	for Gasoline Model: CAN communication system Skid control ECU (Brake actuator assembly) Rack and pinion power steering gear assembly for HV Model: CAN communication system No. 2 skid control ECU (brake actuator assembly) Rack and pinion power steering gear assembly	EPS warning light: Comes on	The ECU judges the system has returned to normal	-
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	-
U0293	Lost Communication With Hybrid Powertrain Control Module	Lost communication with hybrid vehicle control ECU assembly	CAN communication system Hybrid vehicle control ECU 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	-

PROCEDURE

1.	GO TO CAN COMMUNICATION SYSTEM

(a) Go to CAN communication system.

for Gasoline Model: Click here

for HV Model: Click here

END