LANE-KEEPING ASSIST SYSTEM, Diagnostic DTC:U0122, U0123, U0131, U1104, U1112, U1113

DTC Code DTC Name
U0122 Lost Communication with Vehicle Dynamics Control Module
U0123 Lost Communication with Yaw Rate Sensor Module
U0131 Lost Communication with Power Steering Control Module
U1104 Lost Communication with Driving Support ECU
U1112 Lost Communication with Combination Switch ECU
U1113 Lost Communication with Steering Pad ECU

DESCRIPTION

DTC Code DTC Detection Condition Trouble Area
U0122 While engine switch is on (IG), communication stop between skid control ECU and driving support ECU continues for 1 second or more

  • Skid control ECU

  • CAN communication system

  • Driving support ECU
U0123 While engine switch is on (IG), communication stop between yaw rate sensor and driving support ECU continues for 1 second or more

  • Yaw rate sensor

  • CAN communication system

  • Driving support ECU
U0131 While engine switch is on (IG), communication stop between power steering ECU and driving support ECU continues for 1 second or more

  • Power steering ECU

  • CAN communication system

  • Driving support ECU
U1104 While engine switch is on (IG), communication stop between driving support ECU and skid control ECU, object recognition ECU or power steering ECU continues for 1 second or more

  • Driving support ECU

  • CAN communication system

  • Skid control ECU

  • Object recognition ECU

  • Power steering ECU
U1112 While engine switch is on (IG), communication stop between No. 1 meter ECU sub-assembly and driving support ECU continues for 1 second or more

  • No. 1 meter ECU sub-assembly

  • CAN communication system

  • Driving support ECU
U1113 While engine switch is on (IG), communication stop between steering pad switch assembly and driving support ECU continues for 1 second or more

  • Steering pad switch assembly

  • CAN communication system

  • Driving support ECU

CAUTION / NOTICE / HINT

Tech Tips

This circuit uses CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.

PROCEDURE


  1. GO TO CAN COMMUNICATION SYSTEM


    1. for LHD:

      Refer to "PRECAUTION" in the CAN communication system Click here.

    2. for RHD:

      Refer to "PRECAUTION" in the CAN communication system Click here.


    NEXT

    END