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light control switch pin id drawing

Posted: Tue Dec 08, 2020 7:47 pm
by MarkPick
I am having a senior moment........again......

I saw a drawing of the pin Id for the three lever light switch for our M37's, I can not locate that drawing. Would any of you be able to provide the drawing or at least refresh my memory as to where I might have seen it?

Thanks in advacne

Mark

Re: light control switch pin id drawing

Posted: Wed Dec 09, 2020 6:56 am
by John Mc
Are there identifying letters on the terminals on the back of the switch?

TM-9 8030 figure 134 on page 258 has a wiring diagram. This is the switch area of that diagram. Not sure if it's any help if the letters are not on the back of the switch to reference.
M37 Light Switch.jpg
M37 Light Switch.jpg (97.04 KiB) Viewed 844 times

Re: light control switch pin id drawing

Posted: Thu Dec 10, 2020 2:45 pm
by Murf
Yes, those are the corresponding letters in the rubber on the back...

A - feed to brake light switch, 75A
B - panel lights, 49 (40A)
C - brake lights/turn signal switch, 22
D - blackout drive light, 19
E - blackout front markers and blackout tail lights, 20-21 (20A)
F - main power feed to switch, 15
H - tail lights and clearance lights, 21.
Front parking lights on some vehicles when connection on L is not used.
J - power feed to turn signal switch, 160-161 (467A).
Backup lights and horn power feed on some vehicles.
K - feed from brake light switch, 75B
L - front parking lights, 491 (connection not used on some vehicles such as HMMWV)
M - headlights, feeds to dimmer switch, 16
N - blackout brake lights, 23

Re: light control switch pin id drawing

Posted: Sun Dec 13, 2020 1:09 pm
by MarkPick
Awsome! Thanks guys.