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Home >> Lexus >> 2013 >> GX 460 Base >> Repair and Diagnosis (Single Page) >> Suspension >> Electronic Suspension >> Air Suspension System (Diagnostic Codes) >> Air Suspension System >> DTC U0100/71: Lost Communication with ECM/PCM "A"; DTC U0114/71: Lost Communication with Four-Wheel Drive Clutch Control Module; DTC U0122/71: Lost Communication with Vehicle Dynamics Control Module; DTC U0124/71: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126/71: Lost Communication with Steering Angle Sensor Module; DTC U0140/71: Lost Communication with Body Control Module >> Procedure
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DTC U0100/71: Lost Communication with ECM/PCM "A"; DTC U0114/71: Lost Communication with Four-Wheel Drive Clutch Control Module; DTC U0122/71: Lost Communication with Vehicle Dynamics Control Module; DTC U0124/71: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126/71: Lost Communication with Steering Angle Sensor Module; DTC U0140/71: Lost Communication with Body Control Module: Procedure

  1. CHECK FOR DTC 
    1. Clear the DTCs. Refer to DTC CHECK / CLEAR [06/2012 - ] .
    2. Perform a road test.
    3. Check for DTCs. Refer to DTC CHECK / CLEAR [06/2012 - ] .
      RESULT

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

      HINT: 

      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 → See step   3 

    A → See step   2 

  2. USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2012 - ] 
  3. GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING). Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2012 - ]