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Home >> Lexus >> 2017 >> GX 460 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Audio / Video System (With Navigation System) (Diagnostic Codes & Symptom Tests) >> AUDIO AND VISUAL SYSTEM (w/ Navigation System) >> Steering Pad Switch Circuit [08/2015 - 08/2019] >> Procedure

Steering Pad Switch Circuit [08/2015 - 08/2019]: Procedure

  1. INSPECT STEERING PAD SWITCH ASSEMBLY 
    1. Remove the steering pad switch assembly (Refer to REMOVAL [08/2015 - 08/2019] ).
    2. Inspect the steering pad switch assembly (Refer to INSPECTION [08/2015 - 08/2019] ).

    Result: 

    NG 

    REPLACE STEERING PAD SWITCH ASSEMBLY 

    (Refer to REMOVAL [08/2015 - 08/2019] )

    Result: 

    OK 

    See step  2

  2. INSPECT SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY 
    1. Remove the spiral with sensor cable sub-assembly (Refer to REMOVAL [08/2015 - 08/2019] ).
    2. Inspect the spiral with sensor cable sub-assembly (Refer to INSPECTION [08/2015 - 08/2019] ).

    Result: 

    NG 

    REPLACE SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY 

    (Refer to REMOVAL [08/2015 - 08/2019] )

    Result: 

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY) 
    1. Disconnect the H11 multi-media module receiver assembly connector.
    2. Disconnect the G28 spiral with sensor cable sub-assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      H11-30 (SW1) - G28-6 (AU1) Always Below 1 Ω
      H11-31 (SW2) - G28-5 (AU2) Always Below 1 Ω
      H11-32 (SWG) - G28-4 (EAU) Always Below 1 Ω
      H11-30 (SW1) - Body ground Always 10 kΩ or higher
      H11-31 (SW2) - Body ground Always 10 kΩ or higher
      H11-32 (SWG) - Body ground Always 10 kΩ or higher

    Result: 

    OK 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE 

    (Refer to PROBLEM SYMPTOMS TABLE [08/2015 - 08/2019] )

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR