Help me diagnose my turn signal/electrical problem? - JeepForum.com
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Unread 08-17-2011, 11:48 AM   #1
larrivee7
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1999 TJ Wrangler 
 
Join Date: Jun 2011
Location: Louisville, Kentucky
Posts: 47
Help me diagnose my turn signal/electrical problem?

I've searched through several threads, but never seen this exact issue. I might have a combination of things to fix, but here's the rundown:

- With left turn signal on, front and side markers flash correctly but BOTH left and right flash in the back (like hazard lights)

- If the brake is applied, there is no blinking whatsoever and the left arrow is constantly illuminated on the instrument panel. This is intermittent though, as sometimes the brake can be held and the flashing seems normal (although it is still both flashing in the back as described).

- If I barely pull down on the turn signal lever/switch (not to the point of engaging the turn signal), the front turn signal is illuminated (constantly, no flashing) and stays there until I push up on the switch.

- The right signal works just fine without issue.



So what do the electrical veterans say? Fuses? Switch? Both? I haven't had time to investigate much yet, but I thought maybe someone had gone through the same thing before and could give me a hint at where to start based on the symptoms. Thanks guys.

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Unread 08-17-2011, 12:14 PM   #2
Jonny Jeep
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1997 TJ Wrangler 
 
Join Date: Feb 2007
Location: Manchester, UK
Posts: 4,793
Switch. I'll find the switch diagnostics for you to check it against and edit this post.

Edit: here it is from a post I made a couple of days ago...

Quote:
Originally Posted by Jonny Jeep View Post
...The turn signal multi function switch can be checked for continuity between the contacts using the diagnosis section in the FSM. Follow the link in my sig if you don't have one. Go to TJ-99-turn signal and hazard warning system. Page 5.
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"Giving English to an American is like giving sex to a child. He knows it's important but he doesn't know what to do with it."
Adam Cooper (19th century)

Rockauto 5% discount code can be found here... http://www.markviii.org/LOD2/products_services.htm

Online factory service manuals (FSMs) and parts lists can be viewed at http://www.jeep4x4center.com/knowledge-base/index.htm
If the link doesn't work properly, look for the service manual link under Jeep Resources at the bottom of the page.
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Unread 08-18-2011, 09:56 PM   #3
larrivee7
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1999 TJ Wrangler 
 
Join Date: Jun 2011
Location: Louisville, Kentucky
Posts: 47
^ Thank you for the reply and the link. I'll have to look into this. Any idea how much of an undertaking it is to install a new switch?
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Unread 08-19-2011, 01:41 AM   #4
Jonny Jeep
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1997 TJ Wrangler 
 
Join Date: Feb 2007
Location: Manchester, UK
Posts: 4,793
10-15 minute job.

Swap is the same for the XJ here's a link to a write up...
http://www.jeepforum.com/forum/f11/w...-97-xj-620147/

To get the shroud off you need to remove the ignition barrel. In the first picture you can see a fourth hole in the lower shroud, which is the access for the ignition barrel release button. Put the key in the ignition and turn it to the on position, push a screwdriver up into that hole and push the button so you can remove the barrel with the key in it. To refit the barrel just push it back in and it will latch in place.
__________________
"Giving English to an American is like giving sex to a child. He knows it's important but he doesn't know what to do with it."
Adam Cooper (19th century)

Rockauto 5% discount code can be found here... http://www.markviii.org/LOD2/products_services.htm

Online factory service manuals (FSMs) and parts lists can be viewed at http://www.jeep4x4center.com/knowledge-base/index.htm
If the link doesn't work properly, look for the service manual link under Jeep Resources at the bottom of the page.
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blinker , electrical issue , turn signal

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