Toyota Yaris: Power Steering System / Lost Communication with Steering Angle Sensor Module Missing Message (U012687,U010087,U012987,U014087,U023A87)

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Steering / Power Assist Systems / Power Steering System / Lost Communication with Steering Angle Sensor Module Missing Message (U012687,U010087,U012987,U014087,U023A87)

DESCRIPTION

The power steering ECU assembly receives signals from the steering sensor, skid control ECU (brake actuator assembly), forward recognition camera, ECM and clearance warning ECU assembly via CAN communication.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Return-to-normal Condition

Note

U010087

Lost Communication With ECM/PCM "A" Missing Message

Lost communication with ECM

  • CAN communication system
  • ECM

EPS warning light: Does not come on

After normal confirmation

-

U012687

Lost Communication with Steering Angle Sensor Module Missing Message

Lost communication with steering sensor

  • CAN communication system
  • Steering sensor

EPS warning light: Does not come on

After normal confirmation

-

U012987

Lost Communication with Brake System Control Module Missing Message

Lost communication with skid control ECU (brake booster with master cylinder assembly)

  • CAN communication system
  • Skid control ECU (Brake booster with master cylinder assembly)(for TMC Made HV Model)
  • Skid control ECU (Brake actuator assembly)(for TMMF Made HV Model)

EPS warning light: Does not come on

After normal confirmation

-

U014087

Lost Communication with Body Control Module Missing Message

Lost communication with main body ECU (multiplex network body ECU)

  • CAN communication system
  • Main body ECU (multiplex network body ECU)

EPS warning light: Does not come on

After normal confirmation

-

U023A87

Lost Communication with Image Processing Module "A" Missing Message

Lost communication with forward recognition camera

  • CAN communication system
  • Forward recognition camera

EPS warning light: Does not come on

After normal confirmation

w/ Toyota Safety Sense

PROCEDURE

1.

GO TO CAN COMMUNICATION SYSTEM

(a) Go to CAN communication system.

Click here

NEXT

END

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