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headlights to come on when unlocking car

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Old 04-02-2011, 11:08 AM
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focii dan nick
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Default headlights to come on when unlocking car

i have wondered if it is possible, yesterday i set about it i got the wire from the interior light to the light switch on the dash, all fine and dandy but when trying to connect up i found the centre light had 12v perm, and 0v when the light is on and 12v when it is off . am i doing something wrong..... reconsidered do icome of the remote locking module to the switch??? im putting a diode in circuit to stopback feeds from the lights. i need assistance on where to pick my feed from so when i press my remote to open the doors my lights come on outside to make life easier.
i hope this makes sense
Old 04-02-2011, 11:27 AM
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RichieST
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It is switched earth so there is always a live there for when you want the light on when doors are shut etc.

Bit of a cowboy way of doing it IMO. Why not look into how it is done on mk6 facelift fiestas as these have this feature.
Old 04-02-2011, 11:32 AM
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focii dan nick
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i need a pos feed from say the timer behind the fuse box to my switch i think its 58d term for sidelights but not sure whitch wire is which behind the fuse box bit of a snakes nest.
or can i pick up a feed form the remote module?
Old 04-02-2011, 11:35 AM
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Read my post again, It is a switched earth, you will not be able to get a switched positive feed from it. You'll probably be looking at changing the locking module, with perhaps one from a fiesta that has this feature.
Old 04-02-2011, 11:43 AM
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focii dan nick
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i dont realy want to be spending loadsof money replacing the module i think a simple fix would be use a relay. use the earthed switch to keep the coil oen on a relay and take a new fused feed through the contacts on the relay to the lights...
would this work as a cheap o fix?
Old 04-02-2011, 02:45 PM
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The light is permanently live and the earth is switched by the GEM, the interior light does come on when you unlock though for a pre determined time, so clearly it has an earth output you may be able to use to trip the relay and of course the lights will only stay on for this time as well (I am assuming a modern Ford here), if you did such thing you want to be extremely careful and know exactly what you are doing and the implications as damaging this module is not something you will be thanking yourself for! I don't think a new module would work as it's most likely CAN BUS so unless your car is equipped with this?

Martin
Old 04-02-2011, 03:01 PM
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focii dan nick
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no its a t plate 99 focus all sorted now goin through a relay picking my coil positive and perminant feed from interior light and takeing coil negative and switch feed to the switch on the dashboard. when door is open interior light comes on feeds the coil brings on the side lights, when i unlock the door with the remote it brings the interior light on whitch brings the side lights on
Old 17-05-2013, 03:03 PM
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CrisCronin
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sorry to open an old thread but i'm interested in this. Don't suppose someone could make a 'How To' ??
Old 17-05-2013, 03:36 PM
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focii dan nick
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Hi criscronin i actually achieved this with good effect
http://m.youtube.com/index?client=mv...&rdm=mmwuj717q
wiring to make*lights*come*on*when*unlocking*car.take 2 wires from the switched terminaland and the perminant terminal*on*the interior*lights*to a relay, connect the switched wire to the coil and the perminant to through to contacts,take 2 wires to the light switch*on*the dash, one is the feed for the sidelights and the other negative for the coil
Old 17-05-2013, 03:41 PM
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There is a more detailed drawing and picks here
http://fordfocusworld.com/forums/vie...locking#p17873
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