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Home >> Lexus >> 2021 >> LS 500h AWD >> Repair and Diagnosis >> Electrical >> Gauges >> Meter / Gauge System - Diagnostic Codes (3 Of 3) & Symptom Tests (1 Of 2) >> Meter / Gauge System >> Odo/Trip Switch Malfunction [10/2017 - 10/2020] >> Procedure

Odo/Trip Switch Malfunction [10/2017 - 10/2020]: Procedure

  1. READ VALUE USING TECHSTREAM (ODO/TRIP CHANGE SW) 
    1. Using the Techstream, read the Data List.

      Refer to DATA LIST / ACTIVE TEST [10/2017 - 10/2020]

      Body Electrical > Combination Meter > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      ODO/TRIP Change SW ODO/TRIP switch OFF or ON OFF: ODO/TRIP switch released
      ON: ODO/TRIP switch pushed
      -

      Body Electrical > Combination Meter > Data List 

      Tester Display
      ODO/TRIP Change SW

      OK

      ODO/TRIP switch condition displayed on the Techstream changes with the actual switch operation.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [10/2017 - 10/2020] 

    Result: 

    NG 

    See step  2

  2. INSPECT TRIP SWITCH 
    1. Remove the trip switch.

      Refer to REMOVAL [10/2017 - 10/2023]

    2. Inspect the trip switch.

      Refer to INSPECTION [10/2017 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE TRIP SWITCH. Refer to  REMOVAL [10/2017 - 10/2023] 

    Result: 

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - TRIP SWITCH) 
    1. Disconnect the G34 combination meter assembly connector.
    2. Disconnect the G8 trip switch connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G34-4 (ODO) - G8-4 (A/B) Always Below 1 Ω
      G34-26 (SW3) - G8-7 (E) Always Below 1 Ω
      G34-4 (ODO) or G8-4 (A/B) - Body ground Always 10 kΩ or higher
      G34-26 (SW3) or G8-7 (E) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [10/2017 - 10/2020] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR