LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2020 >> RX 450h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio And Visual System (8 Inch Display) (Diagnostic Codes) (1 Of 2) >> AUDIO AND VISUAL SYSTEM (for 8 Inch Display) >> DTC B15F6: Main Body ECU Vehicle Information Reading/Writing Process Malfunction [08/2019 - ] >> Procedure

DTC B15F6: Main Body ECU Vehicle Information Reading/Writing Process Malfunction [08/2019 - ]: Procedure

  1. CHECK CAN COMMUNICATION SYSTEM 
    1. Use the Techstream to check if the CAN communication system is functioning normally.

      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]

      OK

      CAN communication DTCs are not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ] 

    Result: 

    OK 

    See step  2

  2. CHECK POWER DOOR LOCK CONTROL SYSTEM 
    1. Check if the power door lock control system is malfunctioning.

      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ]

      HINT: 

      Customization may not be possible depending on the malfunction in the power door lock control system.

      OK

      No malfunctions are present in the power door lock control system.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] 

    Result: 

    OK 

    See step  3

  3. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM 
    1. Check if the wireless door lock control system is malfunctioning.

      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ]

      HINT: 

      Customization may not be possible depending on the malfunction in the wireless door lock control system.

      OK

      No malfunctions are present in the wireless door lock control system.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO WIRELESS DOOR LOCK CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] 

    Result: 

    OK 

    See step  4

  4. CHECK LIGHTING SYSTEM (for Interior) 
    1. Check if the lighting system (for Interior) is malfunctioning.

      Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ]

      HINT: 

      Customization may not be possible depending on the malfunction in the lighting system (for Interior).

      OK

      No malfunctions are present in the lighting system (for Interior).

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO LIGHTING SYSTEM (for Interior). Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] 

    Result: 

    OK 

    See step  5

  5. CHECK LIGHTING SYSTEM (for Exterior) 
    1. Check if the lighting system (for Exterior) is malfunctioning.

      w/ Automatic Headlight Beam Level Control System: Refer to PARTS LOCATION [08/2019 - ]

      w/o Automatic Headlight Beam Level Control System: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]

      HINT: 

      Customization may not be possible depending on the malfunction in the lighting system (for Exterior).

      OK

      No malfunctions are present in the lighting system (for Exterior).

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO LIGHTING SYSTEM (for Exterior) 

    w/ Automatic Headlight Beam Level Control System: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]

    w/o Automatic Headlight Beam Level Control System: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ]

    Result: 

    OK 

    See step  6

  6. CLEAR DTC 
    1. Clear the DTCs.

      Body Electrical > Navigation System > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  7

  7. CHECK FOR DTC 
    1. Recheck for DTCs.

      Body Electrical > Navigation System > Trouble Codes 

      Result

      Result Proceed to
      DTCs are not output A
      DTCs are output B

    Result: 

    END 

    Result: 

    REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [08/2019 - ]