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Home >> Toyota >> 2021 >> RAV4 Adventure >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Lighting System (W/ AFS) - Diagnostic Codes & Circuit Tests >> LIGHTING SYSTEM (w/ AFS) >> DTC U0101: Lost Communication with TCM; DTC U0120: Lost Communication With Starter / Generator Control Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0151: Lost Communication with Restraints Control Module; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0163: Lost Communication with Navigation Control Module; DTC U0164: Lost Communication with HVAC Control Module; DTC U0208: Lost Communication with "Seat Control Module A"; DTC U0230: Lost Communication with Rear Gate Module; DTC U023A: Lost Communication With Image Processing Module "A"; DTC U0293: Lost Communication With Hybrid Powertrain Control Module; DTC U0327: Software Incompatibility with Vehicle Security Control Module; DTC U1106: Lost Communication with Electric Parking Brake Module; DTC U1117: Lost Communication with Accessory Gateway [02/2019 - 12/2021] >> Procedure
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DTC U0101: Lost Communication with TCM; DTC U0120: Lost Communication With Starter / Generator Control Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0151: Lost Communication with Restraints Control Module; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0163: Lost Communication with Navigation Control Module; DTC U0164: Lost Communication with HVAC Control Module; DTC U0208: Lost Communication with "Seat Control Module A"; DTC U0230: Lost Communication with Rear Gate Module; DTC U023A: Lost Communication With Image Processing Module "A"; DTC U0293: Lost Communication With Hybrid Powertrain Control Module; DTC U0327: Software Incompatibility with Vehicle Security Control Module; DTC U1106: Lost Communication with Electric Parking Brake Module; DTC U1117: Lost Communication with Accessory Gateway [02/2019 - 12/2021]: Procedure

  1. CLEAR DTC 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Main Body / Clear DTCs.
    5. Clear the DTCs.

      Body Electrical > Main Body > 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 power switch on (IG).
    3. Wait 10 seconds or more.
    4. Turn the Techstream on.
    5. Enter the following menus: Body Electrical / Main Body / Trouble Codes.
    6. Check for DTCs.

      Body Electrical > Main Body > Trouble Codes 

      OK

      DTCs are not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ] 

    Result: 

    NG 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [02/2019 - ]