AIR SUSPENSION SYSTEM, Diagnostic DTC:U0122, U0124, U0140, U0293

DTC Code DTC Name
U0122 Lost Communication with Vehicle Dynamics Control Module
U0124 Lost Communication with Lateral Acceleration Sensor Module
U0140 Lost Communication with Main Body ECU
U0293 Lost Communication with HV ECU

DESCRIPTION

The suspension control ECU inputs signals from the skid control ECU, yaw rate sensor, power management control ECU and main body ECU via CAN communication.

DTC No. DTC Detection Condition Trouble Area
U0122 Skid control ECU informs of CAN communication stop for 3 seconds or more

  • CAN communication line

  • Skid control ECU

  • Suspension control ECU
U0124 Yaw rate sensor informs of CAN communication stop for 3 seconds or more

  • CAN communication line

  • Yaw rate sensor

  • Suspension control ECU
U0140 Main body ECU informs of CAN communication stop for 10 seconds or more

  • CAN communication line

  • Main body ECU

  • Suspension control ECU
U0293 Power management control ECU informs of CAN communication stop for 3 seconds or more

  • CAN communication line

  • Power management control ECU

  • Suspension control ECU

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC


    1. Clear the DTC Click here.

    2. Perform a road test.

    3. Check for DTC Click here.

      Result
      Condition Proceed to
      DTC is output A
      DTC is not output B

      Tech Tips

      If a CAN communication malfunction DTC and a related sensor malfunction DTC are output at the same time, the CAN communication malfunction must be repaired before troubleshooting the sensor malfunction DTC.


    B

    USE SIMULATION METHOD TO CHECK Click here

    A

    GO TO CAN COMMUNICATION SYSTEM Click here