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 2019 - 2024 MY RAV4 [11/2018 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

for HV Model: Click here 2019 - 2024 MY RAV4 HV [02/2019 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

NEXT

END