Tail light side lights marker or running lamps? - JeepForum.com
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post #1 of 13 Old 09-09-2019, 04:28 PM Thread Starter
JustaKidWithaCJ
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Tail light side lights marker or running lamps?

So yea stupid wiring question but I can't figure it out...are the side lights on the tail light housing supposed to be turn signal lights or just running lights? I'm not talking about the separate side marker light here just the tail light "side light". Just finishing putting in a Painless harness, the product is painless...my CJ is not.


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post #2 of 13 Old 09-09-2019, 04:55 PM
MetalMountainGoat
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I believe they are just marker lights. I installed my painless harness and wired the tail lights up just like it says in the painless manual, and everything worked as it should.
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post #3 of 13 Old 09-09-2019, 05:03 PM Thread Starter
JustaKidWithaCJ
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The tail lights on it right now have a crappy connection and different colour coded wires so I'm trying to figure that out. It's got three wires; green, brown, and yellow. Green is reverse so i know which wire to splice that one to on the painless harness. The side light taps into the brown wire and the yellow wire goes straight into tail light bulb. So I'm thinking if you say the side light is just a marker light and not a signal light then brown is running lights (?), yellow is brake/turn and green is reverse. If side light is a turn signal then brown is turn signal and yellow is running lights. Shoulda written this stuff down before...

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post #4 of 13 Old 09-09-2019, 08:23 PM
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Side light is just a marker, does not flash.

You could make it flash, wire it's ground to the taillight's turn signal wire. The marker would ground when the turn is off, but when it comes on not you have 2 (+) to the bulb, so it goes out. It would flash opposite of the taillight's turn signal. Ever notice how GM vehicles did that? Simple to do, it's on my list of "one of these days". Especially like the idea of the front side markers flashing for at stop signs and intersections.

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post #5 of 13 Old 09-10-2019, 12:34 AM
MetalMountainGoat
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I thought the front marker lights already flashed. Do they not?
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post #6 of 13 Old 09-10-2019, 12:53 AM
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Depends on how it is wired as different countries require the brake and turn lights to be separate and different colours.

The front round lamps on the grill have two wires, a white wire for park and a light green or light green with tracer for turn.

The rear lamps are fed by th frame harness which has the following wires.

White for park
Light Green and light green with tracer for turn
White with tracer for backup lamps.

The stop lamp switch feeds power to the turn signal switch in the column. this feeds to both the turn signal wires.

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post #7 of 13 Old 09-10-2019, 04:06 AM
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Quote:
Originally Posted by BagusJeep View Post
Depends on how it is wired as different countries require the brake and turn lights to be separate and different colours.

....

The stop lamp switch feeds power to the turn signal switch in the column. this feeds to both the turn signal wires.
Not as important as the stop light switch but the emergency flasher will also supply power to the turnsignal switch when activated. It's on a different fuse than the stop light switch. And the turn signal flasher also supplies power to the turnsignal switch but it's on the same fuse as the stop light switch.

Don't know if that is true on export jeeps with a separate turn signal light as the brake and turnsignal circuits are separate. .


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post #8 of 13 Old 09-10-2019, 02:51 PM Thread Starter
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Alright so I guess the general consensus is in favour of it simply being a marker light so I'll wire it up like that. Maybe "one of these days" I'll wire it for turn signals XP. Thx for the help guys!

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post #9 of 13 Old 09-10-2019, 03:40 PM
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Quote:
Originally Posted by MetalMountainGoat View Post
I thought the front marker lights already flashed. Do they not?

Mine has a Centech harness, so it may be different with OEM, but mine does not.

Rick

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post #10 of 13 Old 09-11-2019, 04:00 AM
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Quote:
Originally Posted by MetalMountainGoat View Post
I thought the front marker lights already flashed. Do they not?
In the OEM configuration, they do flash with the turnsignals.

Interestingly enough, they flash in sequence with the headlights off but out of sequence with the headlights on.


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post #11 of 13 Old 09-11-2019, 07:02 AM
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Quote:
Originally Posted by John Strenk View Post
Interestingly enough, they flash in sequence with the headlights off but out of sequence with the headlights on.
I've noticed the same thing, and often wondered why. However, my curiosity quickly fades at the prospect of trying to interpret a wiring diagram for something that actually works...

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post #12 of 13 Old 09-11-2019, 10:39 AM
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Quote:
Originally Posted by John Strenk View Post
Interestingly enough, they flash in sequence with the headlights off but out of sequence with the headlights on.

That they do.

Looked into this as to why when first getting the electrical system back up and running, but never did find anything on the print as to why. I think the way they flash is just electricity taking the path of the least resistance.

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post #13 of 13 Old 09-11-2019, 10:49 AM
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Quote:
Originally Posted by keith460 View Post
That they do.

Looked into this as to why when first getting the electrical system back up and running, but never did find anything on the print as to why. I think the way they flash is just electricity taking the path of the least resistance.
Kind of. It's just trying to find the best path to ground. If there isn't one, then it's off.

With the headlights off, the ground is through the headlight circuit to ground. When the TS lights up so does the fender marker. So it flashes in sync
With the headlights ON. the fender marker is on also. Then the Turn signal starts there is no ground path so the light goes off. When the turn signal goes off then the light grounds through the turn signal filaments and it's ON again. So it is out of sync then.

Kinda like what happens when you loose a ground connection on the jeep and weird electrical stuff starts to happen.
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