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Unread 07-16-2014, 11:09 PM   #1
sporticon03
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Turn Signal Indicators Not Working

Hi Everyone,

As the title states, my turn signal indicators aren't working. Actually, my turn signals in general are intermittently working. I know there are write-ups about specific components but I'm looking for help diagnosing the issue.

Symptoms:
When either turn signal is engaged, the indicators (dash lights and sound) do not work.
I just confirmed that the signal lights themselves do not work either (when this happens).
I cannot replicate the issue. It just happens. Lights on/off, right/left.
Sometimes the signal will turn on, then stop working even thought the lever remains engaged, other times it just doesn't respond when the lever is engaged.
I've only tried them a few times but the flashers seem fine.

I replaced the turn signal stack once a few years ago because it was not staying engaged.

My thoughts are that it is the stack, relay, or clock spring.

Any thoughts are appreciated before I have to bring it to someone and pay through the nose, or start changing parts myself which will get expensive quickly.

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Unread 07-16-2014, 11:13 PM   #2
LukeADukes
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Clock spring affects gauges cruise control and other stuff. I think you'd have more than one symptom present. This might sound stupid but try unplugging and plugging them back in and making a better connection. I had an issue before and this fixed it. Start with the cheap and easy first ya know
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Unread 07-17-2014, 12:35 AM   #3
brokenyoujoint
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simple to determine if it's your clock spring. Honk your horn. If it don't work your clock spring is shot. Hope its not. PITA and not cheap. I bet its a loose fuse/relay or a ground wire dancing around.
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Unread 07-17-2014, 05:05 AM   #4
Neil F.
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Either the flasher relay or the multi function switch. The realy is cheap and easy to replace so try that first.
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Unread 07-17-2014, 10:16 AM   #5
wushaw
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Multi function switch.
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Unread 07-17-2014, 10:35 AM   #6
Jeepguy43
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Quote:
Originally Posted by brokenyoujoint View Post
simple to determine if it's your clock spring. Honk your horn. If it don't work your clock spring is shot. Hope its not. PITA and not cheap. I bet its a loose fuse/relay or a ground wire dancing around.
Or sometimes the horn just starts blasting by itself and won't stop haha - that happened to my XJ that I flipped (bought to fix & sell).

I got a clock spring for $100 shipped off ebay and had it changed in about 20 minutes. It really wasn't that hard of a job at all really.
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Unread 07-17-2014, 11:28 AM   #7
sporticon03
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Anyone have experience with BWD switches? I think my first replacement was omix Ada. It's the most expensive but only $10 more than the crown switch, but $40 more than the BWD switch.
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Unread 07-28-2014, 07:15 PM   #8
sporticon03
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I replaced the switch, and although the signals do work, the problem is not 100% resolved. They still will randomly not respond. I checked the fuses for dash cluster and turn signals and both are fine. I plan to replace the relay soon and go from there. I should add that I do have remote start (installed 2+ years ago)
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Unread 07-28-2014, 09:46 PM   #9
Snydaleid
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Pull the combo switches and look at the wires that go in to the connector from your wire harness. The big one that goes into the left Combo switch. Verify all the wires are pushed in and locked into the connector. My turn signals were intermittent like yours and I found a black wire had gotten pushed out and was moving making an intermittent connection.
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Unread 07-29-2014, 07:25 AM   #10
boondaba
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Check the 20A mini fuse labeled "MFSW" in your PDS box under the hood next to the airbox. This fuse also controls the signal and hazard relay, without it nothing works. A ground wire crossed when I was installing new fenders and blew it. The fuses behind the glove box for the signals were fine. I pulled my hair for an hour tracing it back to the other fuse. Sure enough it was blown and fixed my problem.
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Unread 07-29-2014, 08:43 AM   #11
Snydaleid
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A blown fuse would not cause intermittent problems.
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Unread 07-29-2014, 10:26 AM   #12
sporticon03
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I'm picking up the "flasher/relay" this afternoon. What I'm confused about is whether there are separate parts for turn signals and hazards? Napa shows the same part for two different things, turn signal and hazards. Is there only one? If not, where is the other located? Neither Napa nor Advance had a diagram to show where they went. The relay I am replacing is the one on the steering column.
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Unread 07-29-2014, 10:36 AM   #13
Snydaleid
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Have you checked for any lose wires in that connector? I'd check that first before throwing more money at it.
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Unread 07-30-2014, 08:22 AM   #14
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Quote:
Originally Posted by sporticon03 View Post
I'm picking up the "flasher/relay" this afternoon. What I'm confused about is whether there are separate parts for turn signals and hazards? Napa shows the same part for two different things, turn signal and hazards. Is there only one? If not, where is the other located? Neither Napa nor Advance had a diagram to show where they went. The relay I am replacing is the one on the steering column.
The combination flasher is located to the back of the left multi-function switch housing on the top of the steering column, where it is concealed beneath the upper steering column shroud. The combination flasher is a smart relay that functions as both the turn signal system and the hazard warning system flasher. The combination flasher contains active electronic Integrated Circuitry (IC) elements. This flasher is designed to handle the current flow requirements of the factory-installed lighting. If supplemental lighting is added to the turn signal lamp circuits, such as when towing a trailer with lights, the combination flasher will automatically try to compensate to keep the flash rate the same.
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Unread 07-31-2014, 07:36 AM   #15
sporticon03
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Problem is solved *fingers crossed* I put the old switch in, and changed the flasher and it is performing normally. I do have a trailer so hopefully it tolerates that when it is connected but all seems well. Thanks
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dash , light , relay , tj , turn signal

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