Page 1 of 1
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 (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.