LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2021 >> UX 200 Base >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> (Meter / Gauge / Display) (Diagnostic Codes & Circuit Tests) >> (Meter / Gauge System) >> Meter Illumination is Always Dark [10/2018 - 07/2022] >> Procedure

Meter Illumination is Always Dark [10/2018 - 07/2022]: Procedure

  1. CHECK CAN COMMUNICATION SYSTEM 
    1. Check if CAN communication DTCs are output.
      1. for HV Model:

        Refer to DIAGNOSIS SYSTEM [10/2018 - 10/2019] Refer to DIAGNOSIS SYSTEM [10/2019 - 08/2021] Refer to DIAGNOSIS SYSTEM [08/2021 - 07/2022]

      2. for Gasoline Model:

        Refer to DIAGNOSIS SYSTEM [10/2018 - 10/2019] Refer to DIAGNOSIS SYSTEM [10/2019 - 07/2022]

      Result

      Result Proceed to
      CAN communication DTCs are not output. A
      CAN communication DTCs are output. (for HV Model) B
      CAN communication DTCs are output. (for Gasoline Model) C

    Result: 

    B 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - ] 

    Result: 

    C 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - 07/2022] 

    Result: 

    A 

    See step  2

  2. CHECK LIGHTING SYSTEM 
    1. Check if lighting system DTCs are output.

      Refer to DTC CHECK / CLEAR [10/2018 - ]

      Body Electrical > Main Body > Trouble Codes 

      Result

      Result Proceed to
      DTC B1244 is not output. A
      DTC B1244 is output. B

    Result: 

    B 

    GO TO DTC B1244. Refer to  DTC B1244: Light Sensor Circuit [10/2018 - 07/2022] 

    Result: 

    A 

    See step  3

  3. CHECK COMBINATION METER ASSEMBLY 
    1. Replace the combination meter assembly with a new one.

      Refer to REMOVAL [10/2018 - 07/2022]

    2. Check the operation.

      Refer to ON-VEHICLE INSPECTION [10/2018 - 07/2022] 

      OK

      The operation of the combination meter assembly returns to normal.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (COMBINATION METER ASSEMBLY WAS DEFECTIVE) 

    Result: 

    NG 

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [10/2018 - 07/2022]