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Z-19/RB Eng Bat (2-10) switch unused in On postion?

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n707sm

Joined: 07 Jun 2007
Posts: 6

Posted: Sun Dec 09, 2007 9:53 am Post subject: Z-19/RB Eng Bat (2-10) switch unused in On postion?

I'm confused about the wiring for the "Eng Bat (2-10)" switch depicted in 

the Z-19/RB architecture diagram.  Please help me to understand.  

Here is what I read this switch wiring to be:



Pin 1: Connected to Pin 5

Pin 2: Feed to energize Engine Battery contactor

Pin 3: Open

Pin 4: 12 volts input

Pin 5: Connected to Pin 1

Pin 6: Ground



I can see how the switch will provide 12 volts to the Engine Battery 

Contactor in the up "Auto" position, but I don't understand how this switch 

(in this wiring configuration) will provide 12 volts to the Engine Battery 

contactor in the center "On" position.



To test, I have connected Pin 1 to Pin 5.  Then with a continuity test 

function on my Auto Ranging Multimeter, I test for continuity between Pin 4 and Pin 2 with the switch in the center On position, and also in the up Auto position.  I only receive continuity in the up Auto position.



What am I missing?



Thanks in advance,

Michael

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