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Home >> Lexus >> 2013 >> GS 450h >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> Meter / Gauge / Display (Diagnostic Codes & Symptom Tests) >> Meter / Gauge System >> DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0151: Lost Communication with Restraints Control Module >> Procedure
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DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0131: Lost Communication with Power Steering Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0151: Lost Communication with Restraints Control Module: Procedure

  1. CHECK FOR DTC 
    1. Check for DTCs. Refer to DTC CHECK / CLEAR [03/2012 - ] .
      RESULT

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

      HINT: 

      If CAN communication system DTC U0100, U0129, U0131, U0142 or U0151 and another DTC are output at the same time, perform troubleshooting for CAN communication system DTC U0100, U0129, U0131, U0142 or U0151 first.

    B → See step   2 

    A → See step   3 

  2. USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2012 - ] 
  3. GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2012 - ]