NAVIGATION SYSTEM (for HDD) Multi-display Switch Circuit

DESCRIPTION

The center instrument cluster finish panel assembly (multi-display) opens, closes and tilts the multi-display according to the operation of the "OPEN/CLOSE" and "TILT" switches of the multi-display switch.

WIRING DIAGRAM

A003VPBE06
A003VPBE07

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT MULTI-DISPLAY SWITCH (MULTI-DISPLAY SWITCH)


    1. A003VWIE03
      Text in Illustration
      *a

      Component without harness connected

      (Multi-display Switch)

      Disconnect the H89 multi-display switch connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (for LHD)
      Tester Connection Condition Specified Condition
      H89-12 (SW1) - H89-6 (E) "OPEN/CLOSE" switch not pressed 10 kΩ or higher
      H89-12 (SW1) - H89-6 (E) "OPEN/CLOSE" switch pressed Below 1 Ω
      H89-11 (SW2) - H89-6 (E) "TILT" switch not pressed 10 kΩ or higher
      H89-11 (SW2) - H89-6 (E) "TILT" switch pressed Below 1 Ω
      Standard Resistance (for RHD)
      Tester Connection Condition Specified Condition
      H89-11 (SW2) - H89-6 (E) "OPEN/CLOSE" switch not pressed 10 kΩ or higher
      H89-11 (SW2) - H89-6 (E) "OPEN/CLOSE" switch pressed Below 1 Ω
      H89-12 (SW1) - H89-6 (E) "TILT" switch not pressed 10 kΩ or higher
      H89-12 (SW1) - H89-6 (E) "TILT" switch pressed Below 1 Ω

    NG

    REPLACE MULTI-DISPLAY SWITCH Click here

    OK

  2. CHECK HARNESS AND CONNECTOR


    1. Disconnect the H89 multi-display switch connector.

    2. Disconnect the H21 display module board connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance (for LHD)
      Tester Connection Condition Specified Condition
      H89-12 (SW1) - H21-13 (VCC) Always Below 1 Ω
      H89-11 (SW2) - H21-14 (VDD) Always Below 1 Ω
      H89-12 (SW1) - Body ground Always 10 kΩ or higher
      H89-11 (SW2) - Body ground Always 10 kΩ or higher
      H89-6 (E) - Body ground Always Below 1 Ω
      Standard Resistance (for RHD)
      Tester Connection Condition Specified Condition
      H89-11 (SW2) - H21-13 (VCC) Always Below 1 Ω
      H89-12 (SW1) - H21-14 (VDD) Always Below 1 Ω
      H89-11 (SW2) - Body ground Always 10 kΩ or higher
      H89-12 (SW1) - Body ground Always 10 kΩ or higher
      H89-6 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here