MAYDAY SWITCH INSPECTION

PROCEDURE

1. INSPECT MAYDAY SWITCH ASSEMBLY

   
   
   1. 

      *a	Component without harness connected (Mayday Switch Assembly)
      *b	SOS Switch
      *c	Green Indicator
      *d	Red Indicator

      Check the resistance.

      
      

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

         Standard Resistance
         Tester Connection Condition Specified Condition 8 (SIG1) - 1 (GND) Mayday switch is pushed 78 to 86 Ω 8 (SIG1) - 1 (GND) Mayday switch is not pushed 392 to 432 Ω

         If the resistance is not as specified, replace the mayday switch assembly.

   2. Check the switch illumination.

      
      

      1. Apply battery voltage to the mayday switch assembly and check that the illumination comes on.

         OK
         Battery Connection Specified Condition Battery positive (+) → 5 (SLED) Battery negative (-) → 1 (GND) SOS switch comes on

         If the resistance is not as specified, replace the mayday switch assembly.

   3. Check the indicator illumination.

      
      

      1. Apply battery voltage to the mayday switch assembly and check that the illumination comes on.

         OK
         Battery Connection Specified Condition Battery positive (+) → 7 (IND1) Battery negative (-) → 1 (GND) Red indicator comes on Battery positive (+) → 3 (IND2) Battery negative (-) → 1 (GND) Green indicator comes on

         If the resistance is not as specified, replace the mayday switch assembly.