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Home >> Lexus >> 2017 >> GX 460 Base >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge / Display System (Diagnostic Codes & Symptom Tests) >> Meter / Gauge System >> Steering Pad Switch Circuit [08/2019 - ] >> Procedure

Steering Pad Switch Circuit [08/2019 - ]: Procedure

  1. READ VALUE USING TECHSTREAM 
    1. Using the Techstream, read the Data List.

      Refer to DATA LIST / ACTIVE TEST [08/2019 - ]

      BODY ELECTRICAL > COMBINATION METER > DATA LIST

      Tester Display Measurement Item / Range Normal Condition Diagnostic Note
      Multi Switch (Up) Steering pad switch assembly (up switch) signal / OFF or ON OFF: Steering pad switch assembly (up switch) released
      ON: Steering pad switch assembly (up switch) pushed
      -
      Multi Switch (Down) Steering pad switch assembly (down switch) signal / OFF or ON OFF: Steering pad switch assembly (down switch) released
      ON: Steering pad switch assembly (down switch) pushed
      -
      Multi Switch (Menu) Steering pad switch assembly (menu switch) signal / OFF or ON OFF: Steering pad switch assembly (menu switch) released
      ON: Steering pad switch assembly (menu switch) pushed
      -
      Multi Switch (Enter) Steering pad switch assembly (enter switch) signal / OFF or ON OFF: Steering pad switch assembly (enter switch) released
      ON: Steering pad switch assembly (enter switch) pushed
      -
      Multi Switch (Right) Steering pad switch assembly (right switch) signal / OFF or ON OFF: Steering pad switch assembly (right switch) released
      ON: Steering pad switch assembly (right switch) pushed
      -
      Multi Switch (Left) Steering pad switch assembly (left switch) signal / OFF or ON OFF: Steering pad switch assembly (left switch) released
      ON: Steering pad switch assembly (left switch) pushed
      -
      Turn Signal Switch (Right) Turn signal switch (right) / OFF or ON OFF: Turn signal switch (right) released
      ON: Turn signal switch (right) pushed
      -
      Turn Signal Switch (Left) Turn signal switch (left) / OFF or ON OFF: Turn signal switch (left) released
      ON: Turn signal switch (left) pushed
      -
      Multi Switch (Back) Steering pad switch assembly (back switch) signal / OFF or ON OFF: Steering pad switch assembly (back switch) released
      ON: Steering pad switch assembly (back switch) pushed
      -

      OK

      Steering pad switch assembly 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 [08/2019 - ] 

    Result: 

    NG 

    See step  2

  2. INSPECT STEERING PAD SWITCH ASSEMBLY 
    1. Remove the steering pad switch assembly.

      Refer to REMOVAL [08/2019 - ]

    2. Inspect the steering pad switch assembly.

      Refer to INSPECTION [08/2019 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE STEERING PAD SWITCH ASSEMBLY. Refer to  REMOVAL [08/2019 - ] 

    Result: 

    OK 

    See step  3

  3. INSPECT SPIRAL CABLE SUB-ASSEMBLY 
    1. Remove the spiral cable sub-assembly.

      Refer to REMOVAL [08/2019 - ]

    2. Inspect the spiral cable sub-assembly.

      Refer to INSPECTION [08/2019 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE SPIRAL CABLE SUB-ASSEMBLY. Refer to  REMOVAL [08/2019 - ] 

    Result: 

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - COMBINATION METER ASSEMBLY AND BODY GROUND) 
    1. Disconnect the G107 spiral cable sub-assembly connector.
    2. Disconnect the G3 combination meter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G107-11 (+DP2) - G3-32 (MSTI) Always Below 1 Ω
      G107-10 (+DP) - G3-31 (MSM+) Always Below 1 Ω
      G107-4 (EAU) - Body ground Always Below 1 Ω
      G107-11 (+DP2) or G3-32 (MSTI) - Body ground Always 10 kΩ or higher
      G107-10 (+DP) or G3-31 (MSM+) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [08/2019 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR