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Old 09-11-2012, 07:23 AM   #1
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Headlight Delay

I had a 1996 Cherokee Country that had an option I miss in my Wrangler.

When I turned off my headlight switch after I turned off the ignition the headlights would stay on for a short time after to give me light to walk to the door.

Did Wranglers ever have that, what would it take to add the feature?

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Old 09-11-2012, 08:04 AM   #2
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Wranglers did not have this. Vehicles that have then have a Central Timmer Module (or function) that control these items. If you were profficient enough in electronics you could build a circuit with a timmer and realys to provide timed power to the headlights. (not worth it)

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Old 09-11-2012, 10:15 AM   #3
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If I remember correctly, it was a small module on the fire wall, much like Chrysler's old voltage regulators.
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Old 09-11-2012, 10:24 AM   #4
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Wonder if just an inline capacitor would work? Would take a little calculating to figure out the capacitance you would need for delay time t, given 12v and the wattage of the lights.
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Old 09-11-2012, 11:29 AM   #5
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I just use the flashlight feature on my smartphone. Or else I would have to back into my parking spot in the driveway. Since my backup lights are useless I would rather see where I am pulling into.
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Old 09-11-2012, 11:53 AM   #6
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This sounds like a fun project. Maybe find a Cherokee in a junk yard and find that timer piece.

I suppose it is much like a relay, except there is a time delay before it opens the circuit.
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Old 09-11-2012, 12:32 PM   #7
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This sounds like a fun project. Maybe find a Cherokee in a junk yard and find that timer piece.

I suppose it is much like a relay, except there is a time delay before it opens the circuit.
Would not work. It integrates with a other vehicle functions.
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Old 09-11-2012, 02:37 PM   #8
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Wonder if just an inline capacitor would work? Would take a little calculating to figure out the capacitance you would need for delay time t, given 12v and the wattage of the lights.
There's far more to adding a delay or timing circuit than just adding a capacitor. And adding a capacitor in series/inline would stop it from working entirely. You'd need an RC (resistor/capacitor) timing circuit controlling something like a relay or SCR (a switching device) to make it work.
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Old 09-11-2012, 02:55 PM   #9
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Don't laugh, but I wonder if something like this would work?

GSS Tech Ed - G-148P Headlight Delay Kit
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Old 09-11-2012, 03:51 PM   #10
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Don't laugh, but I wonder if something like this would work?

GSS Tech Ed - G-148P Headlight Delay Kit
I don't see why it wouldn't, providing the installer knows his way around electrical circuits.
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Old 09-11-2012, 04:30 PM   #11
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It might, if it goes before the headlight relay. Those wires look a little light to handle much current.

Jaycar has one too. Looks a little heavier.
Interior Light Delay Kit MKII - Jaycar Electronics

Can't find the specs on either. There are a number of schematics on the web. Most have a relay for control and use either a R/C net or a 555 timer.

On an CJ, have at it. I would not touch a JK, TJ's might not be too bad.
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Old 09-11-2012, 05:30 PM   #12
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It might, if it goes before the headlight relay. Those wires look a little light to handle much current.
An aftermarket relay would be required as there is no headlight relay in a TJ.
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Old 09-11-2012, 09:20 PM   #13
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Interesting ideas, I am surprised that it hadn't come up before. It's a pretty neat feature, As I remember, if you turned off the lights first the delay didn't operate, but if you turned the engine off first you had 15 or 30 seconds.

I wonder why Chrysler didn't put it at least in the Sahara's or Rubicons. were the wagons that special?
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Old 09-11-2012, 09:43 PM   #14
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Feature is not in a lot of Chrysler products. 97-03 Durangos/Dakotas do not have that.

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