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ADAPTIVE VARIABLE SUSPENSION SYSTEM, Diagnostic DTC:U0101, U0122, U0124, U0126, U0293

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DTC Code DTC Name
U0101 Lost Communication With TCM
U0122 Lost Communication with Vehicle Dynamics Control Module
U0124 Lost Communication with Lateral Acceleration Sensor Module
U0126 Lost Communication with Steering Angle Sensor Module
U0293 Lost Communication with HV ECU
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DESCRIPTION

The absorber control ECU receives signals from the skid control ECU assembly, steering sensor, yaw rate sensor, ECM and hybrid vehicle control ECU assembly via CAN communication.

When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system first.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
U0101 Lost Communication With TCM While driving at 30 km/h (19 mph), CAN communication from the ECM stops for 6 seconds or more.

  • ECM

  • CAN communication system

  • Absorber control ECU

 Does not come on
U0122 Lost Communication with Vehicle Dynamics Control Module CAN communication from the skid control ECU assembly stops for 3 seconds or more.

  • Skid control ECU assembly

  • CAN communication system

  • Absorber control ECU

 Does not come on
U0124 Lost Communication with Lateral Acceleration Sensor Module CAN communication from the yaw rate sensor stops for 3 seconds or more.

  • Yaw rate sensor

  • CAN communication system

  • Absorber control ECU

 Does not come on
U0126 Lost Communication with Steering Angle Sensor Module CAN communication from the steering sensor stops for 3 seconds or more.

  • Steering sensor

  • CAN communication system

  • Absorber control ECU

 Does not come on
U0293 Lost Communication with HV ECU While driving at 30 km/h (19 mph), CAN communication from the hybrid vehicle control ECU assembly stops for 3 seconds or more.

  • Hybrid vehicle control ECU assembly

  • CAN communication system

  • Absorber control ECU

 Does not come on
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CAUTION / NOTICE / HINT

Note:

  • Before performing troubleshooting, inspect the connectors of related circuits.

  • If DTC C1782 (Power Source Voltage Malfunction) is output at the same time, perform troubleshooting for C1782 first.

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  • Before replacing the absorber control ECU, perform all of the following again: 1) symptom simulation ; 2) DTC inspection; and 3) GTS inspection (ECU Data List or Active TestClick here). If no malfunctions are found in other areas, replace the absorber control ECU.

  • When the absorber control ECU is replaced, switch to test mode and check that all test mode DTCs are cleared when their respective deletion conditions are met.

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PROCEDURE


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    CHECK FOR DTC


    1. Clear the DTCs.

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      1. Chassis > Air suspension > Clear DTCs


    2. Turn the power switch off.

    3. Drive the vehicle at a speed of 30 km/h (19 mph) or more for 10 seconds or more.

    4. Check for DTCs.

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      1. Chassis > Air suspension > Trouble Codes


      Result
      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output B
      Tip:

      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.


    • A

      USE SIMULATION METHOD TO CHECKClick here

    • B

      GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)Click here