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Home >> Lexus >> 2015 >> GS 350 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Exterior Lights >> Lighting System (Exterior) - Diagnostic Codes & Circuit Tests >> Lighting System >> DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0101: Lost Communication with TCM; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Skid Control ECU; DTC U0130: Lost Communication with VGRS; DTC U0134: Lost Communication with DRS Module; DTC U0142: Lost Communication with Main Body ECU [09/2014 - 10/2015] >> Procedure
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DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0101: Lost Communication with TCM; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Skid Control ECU; DTC U0130: Lost Communication with VGRS; DTC U0134: Lost Communication with DRS Module; DTC U0142: Lost Communication with Main Body ECU [09/2014 - 10/2015]: Procedure

  1. CLEAR DTC 
    1. Clear the DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] ).

    Result: 

    NEXT 

    See step  2

  2. CHECK FOR DTC 
    1. Check for DTCs (Refer to DTC CHECK / CLEAR [09/2014 - 10/2015] ).

      OK

      DTC U0073, U0100, U0101, U0126, U0129, U0130, U0134 and U0142 output does not occur.

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] )

    Result: 

    NG 

    GO TO CAN COMMUNICATION SYSTEM 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] )