Turn Signal works occasionally

[thehein5]

We have a 96 t&c. The turn signals only work once in a while. Sometimes they start to work and then freeze. Sometimes they don't work at the beginning of a ride and start to work 10 minutes into it. It seems quite random. Does anyone know what the problem might be and if you do, could you be very specific as I am a novice repairman. Thanks so much!

[RAHBABY]

I Have The Exact Same Problem In My 96 T&c, Any Ideas On How To Solve It???

[ylime77]

Originally Posted by RAHBABY

I Have The Exact Same Problem In My 96 T&c, Any Ideas On How To Solve It???

Did you ever get a resolution to this? I have the same problem.

[stefanosa]

I have experienced similar problems with the turn signal working intermittently on my 96 t&c. I replaced the turn signal switch assembly to no success (wasted $75).

After reading a solution-thread for a similar problem; I directed my attention to the combination (flasher module) turn signal / hazard flasher module which is located in the fuse junction block under the dash near the emergency brake release.

To access the Junction Block, loosen the two finger screws of the access cover located above the brake pedal. The combination flasher module is the larger module located in the upper right hand corner.

All I did was wiggle the module and the turn signal worked, ... for now anyway. If I have to replace the module, a dealer quoted a replacement at $45 (part #4686094).

The above procedure is listed in the Haynes Repair Manual.

***They issue a warning to disconnect the neg battery cable and wait at least 2 minutes to avoid possible accidental deployment of airbag of which could cause personal injury***.

Hope this leads you in a direction to remedy your problem.

[jamoosee]

Did your turn signals finally start working properly ?? I am having the same problem.

[stefanosa]

Originally Posted by jamoosee

Did your turn signals finally start working properly ?? I am having the same problem.

The turn signals are still working without any problems!!! In addition to wiggling the module, I did remove the module for inspection, before reinserting.
I hope this works for you so life can become joyful again.

[fred barney]

A related problem is a week and easily broken turn signal lever. Lousy potmetal casted parts.

[jamoosee]

My life will be joyful again once I get rid of this Voyager.FYI the problems I have had since buying the vehicle new in 1999. I presently have only 50,000 miles on it.

I am on my 4th transmission, all replaced in the first year of ownership.

I leak brake fluid from somewhere (under warranty they could not find the leak and told me to keep topping it off).

I leak oil from somewhere at the rear (have replaced rear valve cover gasket twice).

My water pump leaks from the weep hole. (3.0L V6)

The rad leaks from the drain cock.

Occasionally with the turn signal on, the light in the radio flashes with the signals.

What a pile of s---. Definitely my last Chrysler vehicle, shame on me for giving them a chance.

[Bulldog Brewer]

Did you finally fix it and if so how?

[jamoosee]

replaced turn signal module $50 and hasn't reappeared since.

[IntegraR0064]

This was happening on my 96 grand voyager as well, I just wiggled the flasher module, and it fixed it as well. Thanks for the help people!

[catfishfryer]

An intermittent or occasional Dodge Chrysler 4686094 flasher module can be repaired easily! SAVE YOUR $45!!

1. Pull out the flasher;( it is 1"x1" x 2" #4686094 relay module under dash, put your head against the brake pedal and look up, it sticks up higher than most and is 3/4 way up on relay panel; if you push on the relay with the blinker on, and it may start clicking to help you identify it. My car is a 1996 dodge caravan ). The relay is a pain to get out, but keep thinking of the $45 you save.

2. Now to repair the relay. On the spade pin side of the relay, bend and brake off the two 1/2" x 1/32" plastic ears that hold the relay cover on and slide the relay cover off.

3. Look at the circuit board side with the shiney solder connections. The exterior pins go thru the plastic base and are soldered to the circuit board. These solder connections to the pins get hairline stress fractures and are intermittent as they make and lose contact. If you use a magnifier glass you can see the offending cracked solder joint.

4. Re-Solder each contact point on the circuit board edge. This can be done by just reheating the contact with a solder iron till the solder flows a little . If you do use some extra new solder, make sure it does not flow across (bridge) the contact points. It is not necessary to re-solder the component connections on the board.

5. Put cover back on and secure with a dot of glue or short piece of scotch tape , and reinstall in car (I cursed alot when having to blindly reinstall, it is more a pain than removal, but I kept thinking of the $45 saved).

Try this and keep from giving $45 dollars of hard earned money to the unworthy dealer.

[RIP]

Good info catfishfryer. Repost it as a new thread. Label it "Fix your flasher module" or something like that. More will see it. You don't always have to have a question to post a new thread. Info like this will help many. Thanks.

[densmith123]

catfishfryer, you were right on! Thank you for your help.

I had a 2002 Jeep Grand Cherokee with an intermittent left turn signal. Whenever it wouldn't work, I would leave the left turn signal on and then turn the hazard lights on and off real quick. This would get the left turn signal to work 95% of the time.

I suspected the combination flasher relay (P/N: 4686094), so I pulled it out. Go to www.wjjeeps.com for some awesome information on fuse and relay locations for the 1999-2004 Grand Cherokees.

I proceeded to take the relay apart with the use of two flathead screwdrivers, one to pry one of the "ears" and one to pry the other as described in catfish's post. I did not need to break the ears off, which was handy for the reassembly.

There I was staring at the insides of the relay having no idea where to begin troubleshooting, when by luck I stumbled into catfishfryer's post above. Each of the 9 terminals on the combination flasher corresponds to a pin on the bottom side of the circuit board. I tested for continuity from each terminal to each pin to figure out which terminal belonged to each pin and wrote them down. I then tested for continuity from each terminal to the outside of the solder joint for its corresponding pin, and lo and behold discovered a cracked solder joint, 3rd pin from the left. When I would press on the pin I would get continuity, but without pressing on it there was no continuity.

I remelted that solder, and for good measure put just a little more solder onto the joint. I retested it for continuity and it worked perfectly. I slid the relay back together and it snapped back into the housing just fine. The driving test confirms that it was good repair!

Thanks again catfishfryer, you saved me $45 that I didn't have to give to a stinkin' dealer. I would not have known where to begin troubleshooting if it weren't for your info.

[stevemcc295]

Had the same problem with my 2001 JGC. Turn signals/flashers wouldn't work until warmed up (sometimes took over an hour of driving time with the heat blasting). Followed catfishfryer and densmith123 posts and they now work like new. Had at least 2 cracked solder joints that needed touching up but I did them all anyway.
Thanks guys!