DYNAMIC RADAR CRUISE CONTROL SYSTEM, Diagnostic DTC:U0122, U0123, U0126, U0155, U0235, U0293, U1104

DTC Code DTC Name
U0122 Lost Communication with Vehicle Dynamics Control Module
U0123 Lost Communication with Yaw Rate Sensor Module
U0126 Lost Communication with Steering Angle Sensor Module
U0155 Lost Communication with Combination Meter
U0235 Lost Communication with Cruise Control Front Distance Range Sensor
U0293 Lost Communication with HV ECU
U1104 Lost Communication with Driving Support ECU

DESCRIPTION

These DTCs are output when a communication malfunction occurs between the sensors and ECUs that detect collisions, or between ECUs.

DTC Code DTC Detection Condition Trouble Area
U0122 While power 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 power 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
U0126 While power switch is ON (IG), communication stop between steering angle sensor and driving support ECU continues for 1 second or more

  • Steering angle sensor

  • CAN communication system

  • Driving support ECU
U0155 While power switch is ON (IG), communication stop between combination meter and driving support ECU continues for 1 second or more

  • Combination meter

  • CAN communication system

  • Driving support ECU
U0235 While power switch is ON (IG), communication stop between front millimeter wave radar sensor and driving support ECU continues for 1 second or more

  • Front millimeter wave radar sensor

  • CAN communication system

  • Driving support ECU
U0293 While vehicle speed is 5 km/h (3 mph) or more, communication stop between hybrid vehicle control ECU and driving support ECU continues for 1 second or more

  • Hybrid vehicle control ECU

  • CAN communication system

  • Driving support ECU
U1104 While power switch is ON (IG), communication stop between driving support ECU and front millimeter wave radar sensor, hybrid vehicle control ECU, or skid control ECU continues for 1 second or more

  • Driving support ECU

  • CAN communication system

  • Front millimeter wave radar sensor

  • Skid control ECU

CAUTION / NOTICE / HINT

For LHD, refer to the CAN communication system Click here.

For RHD, refer to the CAN communication system Click here.

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Select "Bus Check" from the "System Select" screen on the intelligent tester.

    2. Select "Communication Malfunction DTC" from the "Bus Check" screen, and then select "Enter".

    3. Check for DTC.

      Result
      Result Proceed to
      CAN communication system DTC is not output A
      CAN communication system DTC is output (for LHD) B
      CAN communication system DTC is 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