Steering Pad Switch Inspection

Body Electrical. Lexus Is250, Is220D. Gse20 Ale20
Audio Visual. Lexus Is250, Is220D. Gse20 Ale20

  1. INSPECT STEERING PAD SWITCH (w/ Navigation System)

  2. INSPECT STEERING PAD SWITCH (w/o Navigation System)

Steering Pad Switch -- Inspection



1. INSPECT STEERING PAD SWITCH (w/ Navigation System)


  1. Disconnect the steering pad switch assembly connector.


    Lexus Is250, Is220D. Gse20 Ale20.Audio Visual.Audio And Visual System.Steering Pad Switch  Inspection

  1. Measure the resistance according to the values in the table below.

    Standard resistance:

    Tester connection
    Condition
    Specified condition
    AU1 - EAU
    No switch is pushed
    Approx. 100 kΩ
    AU1 - EAU
    SEEK+ switch: push
    Approx. 0 Ω
    AU1 - EAU
    SEEK- switch: push
    Approx. 0.3 kΩ
    AU1 - EAU
    VOL+ switch: push
    Approx. 1 kΩ
    AU1 - EAU
    VOL- switch: push
    Approx. 3.2 kΩ
    AU2 - EAU
    No switch is pushed
    Approx. 100 kΩ
    AU2 - EAU
    MODE switch: push
    Approx. 0 Ω
    AU2 - EAU
    VOICE switch: push
    Approx. 3.2 kΩ
    AU2 - EAU
    ON HOOK switch: push
    Approx. 0.3 kΩ
    AU2 - EAU
    OFF HOOK switch: push
    Approx. 1 kΩ
    If the result is not as specified, replace the steering pad switch.


2. INSPECT STEERING PAD SWITCH (w/o Navigation System)


  1. Disconnect the steering pad switch assembly connector.


    Lexus Is250, Is220D. Gse20 Ale20.Audio Visual.Audio And Visual System.Steering Pad Switch  Inspection

  1. Measure the resistance according to the values in the table below.

    Standard resistance:

    Tester connection
    Condition
    Specified condition
    AU1 - EAU
    No switch is pushed
    Approx. 100 kΩ
    AU1 - EAU
    SEEK+ switch: push
    Approx. 0 Ω
    AU1 - EAU
    SEEK- switch: push
    Approx. 0.3 kΩ
    AU1 - EAU
    VOL+ switch: push
    Approx. 1 kΩ
    AU1 - EAU
    VOL- switch: push
    Approx. 3.2 kΩ
    AU2 - EAU
    No switch is pushed
    Approx. 100 kΩ
    AU2 - EAU
    MODE switch: push
    Approx. 0 Ω
    If the result is not as specified, replace the steering pad switch.