View Full Version : Trunk Light
CWright
07-31-2012, 12:04 PM
Could someone point me in the right direction to find out how the trunk light cuts off when closed? Is there a mercury switch or button that gets pressed to shut it off? Thanks
IwantmyMMnow!
07-31-2012, 12:51 PM
Could someone point me in the right direction to find out how the trunk light cuts off when closed? Is there a mercury switch or button that gets pressed to shut it off? Thanks
Trunk Monkey!
Marauderman
07-31-2012, 02:27 PM
What he means is to get in it --close it and use flash light to see the answer---then try your factory trunk release to see if it works---hopefully it will--:lol:
CWright
07-31-2012, 02:50 PM
What he means is to get in it --close it and use flash light to see the answer---then try your factory trunk release to see if it works---hopefully it will--:lol:
Did that. :D It stays on :(
CWright
07-31-2012, 06:01 PM
Anybody know?
screamn
07-31-2012, 06:10 PM
The tech who installed my Viper alarm stated that the trunk has a mercury switch and not pin switch. He further tapped into it so that the siren will sound when the trunk is opened when the alarm armed.
I hope this helps a little but I could not tell you where this mercury switch is located...
Also, I think the LCM controls the interior lights and trunk light because after a set number of minutes if any of these lights are illuminated it will shut them all off to save your battery from draining/dying.
CWright
07-31-2012, 06:13 PM
The tech who installed my Viper alarm stated that the trunk has a mercury switch and not pin switch. He further tapped into it so that the siren will sound when the trunk is opened when the alarm armed.
I hope this helps a little but I could not tell you where this mercury switch is located...
Also, I think the LCM controls the interior lights and trunk light because after a set number of minutes if any of these lights are illuminated it will shut them all off to save your battery from draining/dying.
Thanks man! Now I hope to find that switch. :D Now I can dig on it a little to try and locate. :beer:
screamn
07-31-2012, 06:17 PM
Maybe PM Jim, aka Fastblackmerc, he will have more knowledge on this as he rebuilds/fixes LCMs and has his LED light kits for interior/exterior.
Spectragod
07-31-2012, 06:26 PM
The tech who installed my Viper alarm stated that the trunk has a mercury switch and not pin switch. He further tapped into it so that the siren will sound when the trunk is opened when the alarm armed.
I hope this helps a little but I could not tell you where this mercury switch is located...
Also, I think the LCM controls the interior lights and trunk light because after a set number of minutes if any of these lights are illuminated it will shut them all off to save your battery from draining/dying.
This is partially correct, the circuit is timed, but the switch is inside the latch assembly. Ford quit using mercury switches years ago.
MyBlackBeasts
07-31-2012, 06:57 PM
Did that. It stays on
Of course it did, MM knew you were in the trunk so kept the light on so you could see! :D
CWright
07-31-2012, 07:03 PM
of course it did, mm knew you were in the trunk so kept the light on so you could see! :d
:P :lol:
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