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Home >> Lexus >> 2017 >> NX 200t Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Exterior Lights >> Lighting System (W/ Headlight Ecu) - Diagnostic Codes & Symptom Tests >> LIGHTING SYSTEM (w/ Headlight ECU) >> DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U012587: Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; DTC U012987: Lost Communication with Brake System Control Module Missing Message; DTC U014087: Lost Communication with Body Control Module Missing Message [05/2019 - ] >> Procedure
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DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U012587: Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; DTC U012987: Lost Communication with Brake System Control Module Missing Message; DTC U014087: Lost Communication with Body Control Module Missing Message [05/2019 - ]: Procedure

  1. CLEAR DTC 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Front Recognition Camera (Front Lighting Control) / Clear DTCs.
    5. Clear the DTCs.

      Body Electrical > Front Recognition Camera (Front Lighting Control) > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. CHECK FOR DTC 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Wait 5 seconds or more.
    4. Turn the Techstream on.
    5. Enter the following menus: Body Electrical / Front Recognition Camera (Front Lighting Control) / Trouble Codes.
    6. Check for DTCs.

      Body Electrical > Front Recognition Camera (Front Lighting Control) > Trouble Codes 

      OK

      DTCs U010087, U012587, U012987 and U014087 are not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [05/2019 - 10/2019]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2019 - 07/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2020 - ] 

    Result: 

    NG 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [05/2019 - ]