PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:U0125, U0126, U0129, U0293

DTC Code DTC Name
U0125 Lost Communication with Yaw Rate Sensor Module
U0126 Lost Communication with Steering Angle Sensor Module
U0129 Lost Communication with Brake System Control Module
U0293 Lost Communication with Hybrid Vehicle Control System

DESCRIPTION

DTC Code DTC Detection Condition Inspection Area
U0125 When the power switch is on (IG), a communication error between the yaw rate sensor and the driving support ECU assembly is detected for approximately 1 seconds.

  • CAN communication system

  • Airbag sensor assembly

  • Driving support ECU assembly
U0126 When the power switch is on (IG), a communication error between the steering angle sensor and the driving support ECU assembly is detected for approximately 3 seconds.

  • CAN communication system

  • Steering angle sensor

  • Driving support ECU assembly
U0129 When the power switch is on (IG), a communication error between the skid control ECU assembly and the driving support ECU assembly is detected for approximately 3 seconds.

  • CAN communication system

  • Skid control ECU assembly

  • Driving support ECU assembly
U0293 When the power switch is on (IG), a communication error between the power management control ECU and the driving support ECU assembly is detected for approximately 3 seconds.

  • CAN communication system

  • Power management control ECU

  • Driving support ECU assembly

CAUTION / NOTICE / HINT

Tech Tips

When 2 or more DTCs starting with "U" are output simultaneously, inspect the connectors and wire harnesses of each ECU.

PROCEDURE


  1. CHECK FOR DTCs (PRE-CRASH SAFETY SYSTEM)


    1. Clear the DTCs Click here.

    2. Perform the following procedure.

      Tech Tips

      If the following procedure is not performed, the previously output DTC cannot be detected.


      1. Drive the vehicle at a speed of 5 km/h (4 mph) or more for approximately 3 seconds or more.

    3. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC U0125, U0126 U0129 and U0293 is not output A
      DTC U0125, U0126 U0129 and U0293 are output (for LHD) B
      DTC U0125, U0126 U0129 and U0293 are output (for RHD) C

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here