Very Strange Brake Light/Turn Signal Problem - Dodge Durango Forum and Dodge Dakota Forums
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post #1 of 15 Old 05-22-2011, 05:20 AM Thread Starter
DeepNukem
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Very Strange Brake Light/Turn Signal Problem

When I'm driving and I turn on my right hand turn signal, sometimes the green turn signal arrow on the dash will stay solid green and not blink. I can drive three miles down the road and all of a sudden it will start blinking. Today my girlfriend followed me and reported that sometimes the brake light would be on, and sometimes it would be off. When she noticed that the brake light would be off, I'd turn the turn signal ON and the green light inside the dash would be solid green.(not blinking like normal) When she reported that the brake light was on, the turn signal also blinked on the dash as it's supposed to. I have checked the bulb and it is fully functioning. I even took it out and cleaned it and cleaned the housing for the bulb. It's like it has a mind of its own, sometimes it works fine and sometimes it's not working. I can't find any logical rhyme or reason for when or why this is happening. I need help, I have to have an inspection Monday and don't want to risk it choosing then to not work. A mechanic buddy of mine informed me it was most likely a resister under the dash near the fuse box. It is a silver, round plug/resister/fuse that's the size of a silver dollar. He replaced it and said that would fix the problem, but it has not. I'm stumped, please help!

Mike
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Last edited by DeepNukem; 05-22-2011 at 06:55 AM.
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post #2 of 15 Old 05-22-2011, 06:19 AM
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I'd bet it's your flasher relay.

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post #3 of 15 Old 05-22-2011, 06:53 AM Thread Starter
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Quote:
Originally Posted by Wrider View Post
I'd bet it's your flasher relay.
Ok, WHERE exactly is the flasher relay and would that be the silver dollar sized silver part my friend replaced near the inside cab fuse box or something different??

Also, I want to make this VERY clear. This is only happening on my right rear brake/turn signal bulb. The LEFT side brake and turn signal NEVER fail. I'm not a mechanic (and not trying to be a smart butt) but from a logical standpoint if it was a flasher relay....wouldn't it effect the left side as well from time to time?

Like I said, the left brake/turn signal works every time. It's only the right side giving me a problem and sometimes it works, sometimes it doesn't and I'm pulling my hair out trying to figure it out. Thanks for your response.
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post #4 of 15 Old 05-22-2011, 03:20 PM
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Sounds like a grounding issue to me...
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post #5 of 15 Old 05-23-2011, 02:41 AM Thread Starter
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I fixed it! It was not a relay, it was a wiring issue to some degree. The main issue was the reverse light only had one electrical metallic connection (not sure what the technical term is). The brake light happened to be a totally separate issue in the sense that it had two electrical metallic connectors. As it turns out, I had two brake light bulbs that EACH bulb had two electrical "bumps". I took the whole harness to Advanced Auto Parts and the sales person immediately showed me that the connection for the tail light hit between the "bumps" and that's why twisting it allowed for a connection. I got new bulbs, the correct ones, for both the brake lights and the reverse lights and now everything works perfectly. In a nutshell, it was a grounding issue, but when I had the right bulbs, the issue went away. Thank you all for your advice and help!

Mike
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post #6 of 15 Old 05-24-2011, 01:27 AM
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Ohh...you had 1156 bulbs in (single 27w circuit) where there should be a 1157 (5/27w twin circuit) bulb? Right?
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post #7 of 15 Old 05-24-2011, 02:13 AM Thread Starter
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Quote:
Originally Posted by caulk04 View Post
Ohh...you had 1156 bulbs in (single 27w circuit) where there should be a 1157 (5/27w twin circuit) bulb? Right?
Ok............ (I'm not a mechanic, but it's fixed!)

All joking aside, please be on the lookout for future posts from me, I have more troubleshooting to do with you.

Mike
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post #8 of 15 Old 05-24-2011, 03:31 AM
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If only I can find my problem... flashers work just fine with no lights, with parking and or lights on, only have a solid arrow and no flashing in the signals.
http://www.youtube.com/user/1rebel13#p/u/4/HlaF6jDBWgY
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post #9 of 15 Old 05-24-2011, 05:18 AM Thread Starter
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Quote:
Originally Posted by caulk04 View Post
Ohh...you had 1156 bulbs in (single 27w circuit) where there should be a 1157 (5/27w twin circuit) bulb? Right?
Wanted to give u better answer. On my 95, imagine the tail light connections with no bulbs. The top one (brake,turn signal) has 2 little brass looking metal "pods" that are slightly raised in order to make contact with the bulbs MATCHING 2 "pods"......thus both sets of raised "pods" are touching and in theory should work at that point. (assuming nothing else is wrong) Right?? Right!

However, apparently one of two things happened.

1) Way back I bought the wrong bulb because I also took apart the LEFT tail light assembly just to put my eyeballs on the WORKING side to see if I could tell any difference. I pulled the LEFT (working) bulb out and compared it to the RIGHT side bulb (the one not working) and I noticed a very slight difference in the size of the metal end "pods"

The ones from the working bulb were slightly larger and more raised than the non working bulb. So I put the left side bulb in the right side tail light and immediately it worked.

SOOO.... either I bought the wrong bulb several years ago...OR...just by wear and tear the right side bulb "pods" had been rubbed down to the point they no longer made good contact.

Now imagine the lower connection (reverse light) with no bulb.....
That connection only has ONE "pod." Not 2 like the brake lights do.
However, the bulb I had in there had TWO "pods"....

The single pod on the connector would sometimes make contact with the two pods on the bulb, sometimes it wouldn't.

In short, I had a brake light bulb in the reverse connector. Not good. lol.
So I bought 2 new brake lights and 2 new reverse lights, some grease, made sure I put the right bulbs in the right places, (changed all of them), put everything back together and BINGO. Works like a charm now and I'm happy to report that I passed my inspection today. However, and I'm not making this up....the person first told me he couldn't pass me because "none of your brake lights or turn signals work," And I was like OH HELL YES THEY DO, LET ME SHOW YOU!!!! He agreed, I climbed in the cab turned the power on and went through every light and they all worked just fine....just like I said they did, but better yet, KNEW they did. Then I passed. I hope this answered your question better.

Last edited by DeepNukem; 05-24-2011 at 05:31 AM.
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post #10 of 15 Old 05-24-2011, 05:29 AM Thread Starter
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Quote:
Originally Posted by Rebel13 View Post
If only I can find my problem... flashers work just fine with no lights, with parking and or lights on, only have a solid arrow and no flashing in the signals.
http://www.youtube.com/user/1rebel13#p/u/4/HlaF6jDBWgY
Not much help I know....but that's got to be an electrical issue somewhere. Fuse, wrong fuse, perhaps the relay as others suggested my problem was...or a grounding out issue. When you turn on the lights, SOMETHING is taking power away from the flashers or something is not hooked up right, or you got a bad part somewhere. I know saying it's got to be electrical is a definite "duh" but thats the best I can do for you. Hope you get your answer.
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post #11 of 15 Old 05-25-2011, 02:47 AM
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This has happened since I converted to led's. I have a led flasher works fine. All bulbs hooked up right. Been told can be a grounding issue, but not sure exactly where to check the grounds?
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post #12 of 15 Old 05-25-2011, 04:49 AM Thread Starter
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so try this....... find a light bulb forum. Trust me, they're out there....lol Sign up and go to the led section, find an led expert on that forum, explain your issue...that with regular bulbs all was well (if I read u right), but once you converted to led now you have this issue...show them your video and try to explain a little more to them about what's going on. That's what I'd do. You converted to leds....you need a light expert, not a mechanic, and I'm not trying to be a smart ass. I'm just saying you are far more likely to get your answer from a lighting type forum. Preferably one that has nothing to do with cars at all. Just lights. Good luck.
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post #13 of 15 Old 05-25-2011, 11:30 PM
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Quote:
Originally Posted by caulk04 View Post
Ohh...you had 1156 bulbs in (single 27w circuit) where there should be a 1157 (5/27w twin circuit) bulb? Right?
that is the answer for your problem...somewhere along the way some one jammed an 1156 bulb where an 1157 bulb should have been 1156 is a single filiment bulb(one contact) and the 1157 is a double filiment bulb(two contacts) they should not be able to swap as the side terminals are ofset on the 1157 and straight across on the 1156 but some people manage to do it.


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post #14 of 15 Old 05-25-2011, 11:38 PM
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Quote:
Originally Posted by Rebel13 View Post
If only I can find my problem... flashers work just fine with no lights, with parking and or lights on, only have a solid arrow and no flashing in the signals.
http://www.youtube.com/user/1rebel13#p/u/4/HlaF6jDBWgY
are your dash lights led too? not sure how the led flashers work but I'm guessing that is has something to do with the current flow when the park lights are turned on. would almost have to be grounding issues keeping the current from going to the flasher if they work the same as a conventional flasher, if it was a power feed issue then they should flash faster, but as I stated before, not sure as to how the led flashers work.
I know with the new Volvo trucks, if it did not come with led lights you have to reprogram the LCM if you change them or nothing will work and same goes for if it came with led and you change to incandecent bulbs...great fun the first time we had that issue.


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post #15 of 15 Old 05-26-2011, 12:50 AM
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Quote:
Originally Posted by ramayer View Post
are your dash lights led too? not sure how the led flashers work but I'm guessing that is has something to do with the current flow when the park lights are turned on. would almost have to be grounding issues keeping the current from going to the flasher if they work the same as a conventional flasher, if it was a power feed issue then they should flash faster, but as I stated before, not sure as to how the led flashers work.
I know with the new Volvo trucks, if it did not come with led lights you have to reprogram the LCM if you change them or nothing will work and same goes for if it came with led and you change to incandecent bulbs...great fun the first time we had that issue.
Dash is led's too and that is when it started. It use to be worse. When you hit the brakes the radio and overhead lights would dim and flicker. I solved the flicker with a single resistor. I have added 4 resistors at one time, but no change with more then one alone.
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