LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2018 >> RX 450h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Exterior Lights >> Adaptive Front Lighting System (Diagnostic Codes) >> AFS (Adaptive Front-Lighting System) >> DTC B2410: Headlight Swivel Motor LH Communication Malfunction; DTC B2411: Headlight Swivel Motor RH Communication Malfunction [10/2015 - 08/2019] >> Procedure

DTC B2410: Headlight Swivel Motor LH Communication Malfunction; DTC B2411: Headlight Swivel Motor RH Communication Malfunction [10/2015 - 08/2019]: Procedure

  1. CHECK FOR DTC 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [10/2015 - 08/2019]

      Body Electrical > AFS > Clear DTCs 

    2. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2015 - 08/2019]

      Body Electrical > AFS > Trouble Codes 

      OK

      DTC B2410 and B2411 are not output.

      NOTE:

      If a headlight swivel and leveling motor power source circuit DTC is output at the same time as B2410-2411, perform troubleshooting for the headlight swivel and leveling motor power source circuit DTC first.

      Result

      Result Proceed to
      OK A
      NG (DTC B2410 is output) B
      NG (DTC B2410 and a headlight swivel and leveling motor power source circuit DTC are output.) C
      NG (DTC B2411 is output) D
      NG (DTC B2411 and a headlight swivel and leveling motor power source circuit DTC are output.) E

    Result: 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - 08/2016]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2016 - 12/2017]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 03/2018]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2018 - 08/2019] 

    Result: 

    GO TO DTC B2412, B2417. Refer to  DTC B2412: Headlight Swivel Motor LH Malfunction; DTC B2413: Headlight Swivel Motor RH Malfunction; DTC B2417: Headlight Beam Level Control Motor LH Malfunction; DTC B2418: Headlight Beam Level Control Motor RH Malfunction [10/2015 - 08/2019]  

    Result: 

    See step  3

    Result: 

    GO TO DTC B2413, B2418. Refer to  DTC B2412: Headlight Swivel Motor LH Malfunction; DTC B2413: Headlight Swivel Motor RH Malfunction; DTC B2417: Headlight Beam Level Control Motor LH Malfunction; DTC B2418: Headlight Beam Level Control Motor RH Malfunction [10/2015 - 08/2019]  

    Result: 

    See step  2

  2. CHECK HEADLIGHT ECU SUB-ASSEMBLY LH 
    1. Replace the headlight ECU sub-assembly LH with a new or known good one.

      Refer to REMOVAL [10/2015 - 08/2016] , or refer to REMOVAL [08/2016 - 08/2019]

    2. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2015 - 08/2019]

      Body Electrical > AFS > Trouble Codes 

      OK

      DTC B2410 is not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (HEADLIGHT ECU SUB-ASSEMBLY LH WAS DEFECTIVE) 

    Result: 

    NG 

    REPLACE HEADLIGHT ASSEMBLY LH. Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 08/2019] 

  3. CHECK HARNESS AND CONNECTOR (HEADLIGHT ECU SUB-ASSEMBLY LH - HEADLIGHT ECU SUB-ASSEMBLY RH) 
    1. Disconnect the A49 headlight ECU sub-assembly LH connector.
    2. Disconnect the A50 headlight ECU sub-assembly RH connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A49-19 (LINS) - A50-19 (LINS) Always Below 1 Ω
      A49-19 (LINS) or A50-19 (LINS) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  4

  4. CHECK HEADLIGHT ECU SUB-ASSEMBLY RH 
    1. Replace the headlight ECU sub-assembly RH with a new or known good one.

      Refer to REMOVAL [10/2015 - 08/2016] , or refer to REMOVAL [08/2016 - 08/2019]

    2. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2015 - 08/2019]

      Body Electrical > AFS > Trouble Codes 

      OK

      DTC B2411 is not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (HEADLIGHT ECU SUB-ASSEMBLY RH WAS DEFECTIVE) 

    Result: 

    NG 

    See step  5

  5. CHECK HEADLIGHT ECU SUB-ASSEMBLY LH 
    1. Replace the headlight ECU sub-assembly RH with a new or known good one.

      Refer to REMOVAL [10/2015 - 08/2016] , or refer to REMOVAL [08/2016 - 08/2019]

    2. Check for DTCs.

      Refer to DTC CHECK / CLEAR [10/2015 - 08/2019]

      Body Electrical > AFS > Trouble Codes 

      OK

      DTC B2411 is not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (HEADLIGHT ECU SUB-ASSEMBLY LH WAS DEFECTIVE) 

    Result: 

    NG 

    REPLACE HEADLIGHT ASSEMBLY RH. Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 08/2019]