2004 TJ Turn Signal Craziness - JeepForum.com
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post #1 of 17 Old 06-01-2012, 06:40 PM Thread Starter
justinlancaster
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2004 TJ Turn Signal Craziness

My Jeep's having some weird issues with the left turn signal.

First the Left Signal started blinking much faster than the Right Signal. It did this for a while...

Today the Left Signal light on dash turned solid (not blinking) and makes a loud buzzing sound when it's on. The signal light itself is not working at this point.

Also, maybe unrelated but weird. During the "fast blinking phase" the beeping noise that you hear when the keys are in the ignition and you open the door would randomly come on when i was driving. It would beep for a couple minutes and then stop. One day I discovered if you turn the Right Signal on it would stop the beeping. Weird.

Anyone experience any of this kind of craziness with their Jeeps?

Is the signal something I can fix myself? (I'm not much of a mechanic, but I like to tinker)

If anyone can help with this I'd really appreciate it! Thanks in advance!!

J

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post #2 of 17 Old 06-01-2012, 06:46 PM
Jason
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Start by checking each bulb and socket. If the bulb isn't functioning, replace it. If that doesn't work, then you'll have to test the socket with a meter or test light.
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post #3 of 17 Old 06-01-2012, 06:50 PM
sjones26573
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Also check for shorts. Couple wires get crossed or touch ground and crazy things happen.

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post #4 of 17 Old 06-01-2012, 09:24 PM
RBxj
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Had a similar problem on my 06 LJ. Turned out to be water inside the the left turn signal enclosure. Turn sharp or stop too fast and it would short out the bulb and act crazy till the moisture got out of the connector.

RB
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post #5 of 17 Old 06-02-2012, 08:41 AM Thread Starter
justinlancaster
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Thanks guys!

Update: I went out this morning and the buzzing stopped and now the Left Signal light in the dash is on constantly. Also the Left Side blinker lights up solid when the Left Turn Signal is engaged.

I'm going to check all my bulbs a little later this morning & replace any if needed.

Once I get into replacing I'll check out the sockets. Can you test them with a regular voltage tester? I have the super basic kind that just lights up.

I'll check the wiring too. Stupid question... How do I check for shorts? Is it just tracing the wires to make sure no wires are exposed or touching others?
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post #6 of 17 Old 06-02-2012, 08:59 AM
ChiliPep99
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I had some issues similar to what you're having on my 99 TJ. It drove me crazy chasing down ground points and checking bulbs. Finally, I checked my front socket on the side I was having issues with and found the metal contacts inside were the problem. I had one missing and one loose. I did have a bulb burn out prior to the crazy issues which gave me the fast flash. The contact must have fallen out when I replaced the bulb. Hope this helps!
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post #7 of 17 Old 06-02-2012, 09:28 AM
sjones26573
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You may need to get a multimeter to test the continuity of the wires to find a short.

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post #8 of 17 Old 06-02-2012, 05:02 PM Thread Starter
justinlancaster
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Looks like my rear left brake light & blinker (same bulb?) are out. This is the same side that's been giving me problems...

Think it's as simple as replacing the bulb?

Didn't check the sockets yet, need to get some tools to get in there.
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post #9 of 17 Old 06-02-2012, 05:08 PM
Jason
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Quote:
Originally Posted by justinlancaster View Post
Looks like my rear left brake light & blinker (same bulb?)
Yes, two filaments are in one bulb that handles stop/turn/tail function

Quote:
Originally Posted by justinlancaster View Post
Think it's as simple as replacing the bulb?
Could be. Cheap and easy enough to start with.
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post #10 of 17 Old 06-02-2012, 05:32 PM
FMFTJ
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I had a very similar issue, after replacing damn near everything, it ended up being the flasher relay. But i would agree with every one else and start small with looking at the bulbs and harnesses first.
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post #11 of 17 Old 06-02-2012, 05:49 PM
1999TJRED85000
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A standard function of the electrical setup is to flash fast whenever the voltage changes significantly (when a bulb is out) so your Jeep is doing what it is supposed to do. Check all your bulbs, replace everything that doesn;t look right (bulbs are cheap) and your problem will hopefully go away.

F U
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post #12 of 17 Old 06-05-2012, 05:54 AM Thread Starter
justinlancaster
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So... I replaced the Brake/Signal & Third Brake Light bulbs and it fixed the fast blinking... For a 1/2 day.

Yesterday it started again, same side. Plus the beeping & solid Left Signal light on the dash I mentioned in the OP.

Going to check my lights this morning to see if any more bulbs blew.

Thoughts?
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post #13 of 17 Old 06-05-2012, 07:45 AM
umbra
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bulb>flasher/relay>fuses>socket>wiring and grounds.

I doubt that wiring and/or grounding is a problem, or you would be seeing other issues. My 97 did something similar, and it turned out to be a worn out socket that allowed the bulb to shake loose.
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post #14 of 17 Old 06-10-2012, 07:33 AM Thread Starter
justinlancaster
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Quote:
Originally Posted by umbra View Post
My 97 did something similar, and it turned out to be a worn out socket that allowed the bulb to shake loose.
I think I'm having the same issue.

Last week I noticed my Rt Front Turn Signal was out. Tapped on it and it came back on. Took it apart and it looked like the bulb was a little loose. Also, the socket had separated from the wiring harness a little. Couldn't get it to click back together though. Think it needs to be replaced?
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post #15 of 17 Old 06-10-2012, 07:39 AM
VT_Rubi
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I had the same problem, ended up replacing my turn signal switch in the steering column.
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blinker , electrical issue , turn signal

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