MAYDAY SWITCH INSPECTION

PROCEDURE


  1. INSPECT MAP LIGHT ASSEMBLY


    1. B001LY7E15
      Text in Illustration
      *a

      Component without harness connected

      (Map Light Assembly)

      Inspect the operation of the emergency call switch.


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        20 (SIG1) - 16 (GND) Emergency call switch not operated 410 to 414 Ω
        20 (SIG1) - 16 (GND) Emergency call switch operated 81 to 83 Ω
    2. B001LY7E16
      Text in Illustration
      *a

      Component without harness connected

      (Map Light Assembly)

      Inspect the illumination for the emergency call switch.


      1. Connect 4 1.5 V dry-cell batteries in series.

      2. Connect a positive (+) lead from the batteries to terminal 7 (ILL), and a negative (-) lead to terminal 4 (LILL) of the map light assembly connector.

      3. Check if the illumination for the emergency call switch comes on.

        OK
        Illumination for the emergency call switch comes on.
    3. B001LY7E17
      Text in Illustration
      *a

      Component without harness connected

      (Map Light Assembly)

      Inspect the indicator of the emergency call switch.


      1. Connect 2 1.5 V dry-cell batteries in series.

      2. Connect a positive (+) lead to terminal 19 (IND1) or 18 (IND2), and a negative (-) lead to terminal 3 (GND3) of the map light assembly connector.

      3. Check if the red and green indicators come on.

        OK
        The red indicator comes on when the positive (+) lead from the batteries is connected to terminal 19 (IND1) and the negative (-) lead is connected to terminal 3 (GND3).
        The green indicator comes on when the positive (+) lead from the batteries is connected to terminal 18 (IND2) and the negative (-) lead to is connected to terminal 3 (GND3).