AIRBAG SYSTEM, Diagnostic DTC:U0125/99, U0126/99, U0129/99, U0130/99

DTC Code DTC Name
U0125/99 Lost Communication with Yaw Rate Sensor Module
U0126/99 Lost Communication with Steering Angle Sensor Module
U0129/99 Lost Communication with Brake System Control Module
U0130/99 Lost Communication with Steering Effort Control Module

DESCRIPTION

The airbag ECU assembly sends/receives signals to/from the yaw rate sensor, steering sensor, skid control ECU (brake actuator assembly) and VGRS ECU (front steering control ECU) via CAN communication.

DTC No. Detection Item DTC Detection Condition Trouble Area Test Mode / Check Mode
U0125/99 Lost Communication with Yaw Rate Sensor Module CAN communication error between the airbag ECU assembly and yaw rate sensor (CAN communication system malfunction) CAN communication system Does not apply to test/check mode
U0126/99 Lost Communication with Steering Angle Sensor Module CAN communication error between the airbag ECU assembly and steering sensor (CAN communication system malfunction) CAN communication system Does not apply to test/check mode
U0129/99 Lost Communication with Brake System Control Module CAN communication error between the airbag ECU assembly and skid control ECU (brake actuator assembly) (CAN communication system malfunction) CAN communication system Does not apply to test/check mode
U0130/99 Lost Communication with Steering Effort Control Module CAN communication error between the airbag ECU assembly and VGRS ECU (front steering control ECU) (CAN communication system malfunction) CAN communication system Does not apply to test/check mode

Tech Tips

DTC U0130 is output only for vehicles with the variable gear ratio steering system.

PROCEDURE


  1. CHECK DTC


    1. Turn the engine switch on (IG), and wait for at least 60 seconds.

    2. Check for DTCs.

      Click here


      Body Electrical > SRS Airbag > Trouble Codes
      OK
      DTCs U0125/99, U0126/99, U0129/99 and U0130/99 are not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    GO TO CAN COMMUNICATION SYSTEM Click here