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

NEXT

END
    Terminals Of Ecu

    Steering Column

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