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Turn Signal Hazard backwards operation

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Old Jun 28, 2009 | 08:40 AM
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Default Turn Signal Hazard backwards operation

Here is a problem I could use some troubleshooting help with:

1. Neither the Hazards & turn signals will operate under normal circumstances when called upon to perform. No lights on dash or outside or flashing.

2. However, both front & rear turn signal bulbs will operate properly with the hazard switch pulled out & turn signal lever in correct position for a turn. Both directional lights are illuminated & flashing in this condition. Only the right or left bulbs will operate outside according to the correct position of the turn signal lever.

3. I have been working to get the horns operational & found the problem to be dirty contacts on the spring loaded horn contact on the turn signal switch. Now, I have corrected the horn problem but have this goofy turn signal issue.

Any ideas?
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Old Jun 28, 2009 | 08:48 AM
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Hazard switch pulled out is the correct position.
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Old Jun 28, 2009 | 09:13 AM
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OK, but why can't I get hazards to work with hazard button in and why are both directional lights on the dash both on & blinking (acting like the hazards) when I operate the turn signals? Any more thoughts would be great.
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Old Jun 28, 2009 | 09:20 AM
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With the hazard switch pushed in if the hazards are not working the first thing to check is the hazard flasher. Both dash indicators will be on if the hazard button is pushed in. I think you need to get the hazards working and then recheck the operation and see if things are normal. It can be confusing. If your hazard flasher is not the problem the next step is to be sure the hazard flasher has power getting to it.
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Old Jun 28, 2009 | 10:12 AM
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OK. I will check that. Do you know on a '69 if the turn signal & hazard flasher are one in the same. I don't see one on the fuse block & I know it is not missing b/c they used to work last week. I know where the one is under dash on passenger side. I assume their is only one flasher??
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Old Jun 28, 2009 | 10:28 AM
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Originally Posted by ukengr93
OK. I will check that. Do you know on a '69 if the turn signal & hazard flasher are one in the same. I don't see one on the fuse block & I know it is not missing b/c they used to work last week. I know where the one is under dash on passenger side. I assume their is only one flasher??
They are not the same. Your hazard flasher will be in the upper left hand corner of the fuse box.
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Old Jun 28, 2009 | 10:55 AM
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DWncchs, much obliged. I must have my head up my rear. The hazard flasher is indeed missing. I swapped the turn signal flasher to the fuse box & hazards work.

Now, any idea why both dash directional indicators light when right or left turn is called upon instead of just one?
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Old Jun 28, 2009 | 11:03 AM
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Originally Posted by ukengr93

Now, any idea why both dash directional indicators light when right or left turn is called upon instead of just one?
My first guess is you have lost a ground in the front signals and they are using the dash indicators for their ground. Take a good look at how bright each parking light or turn signal is and if one is dimmer check that socket for a poor ground.
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Old Jun 28, 2009 | 11:16 AM
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Just thought of something. Pull one of your side marker bulbs and then operate the turn signal and see if that will locate which side is not grounded good.


EDIT-just reread my post and it is a little confusing.
by pulling one of the side marker bulbs this should remove the common between the dash indicators and only one dash indicator should light if I'm on the right track here. The one that lights should be the side with a poor ground.(common being the brown parking light wire-the side marker lights don't have their own grounds)

Last edited by ...Roger...; Jun 28, 2009 at 11:56 AM.
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Old Jun 28, 2009 | 06:53 PM
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DWncchs,
I think you are on the $. Both side markers aren't working. Bulbs are ok, but there is some shady splicing going on the passenger side. Anyway, I am out of wkend time to mess w/ it but I believe you have me on the path with the ground problem.

I also wanted to say for what it's worth you senior guys are appreciated from my end. I would have likely gotten there, but you saved me a boatload of time. I may send you a message if I get hung up when I get back into it. Cheers.
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Old Jun 28, 2009 | 10:11 PM
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Actually, still messing with this and could use some more direction.

Currently, down to:
1. Neither side marker turn signal is working. Bulbs check out ok w/ ohmeter & with direct voltage they light. I do get some very low voltage(0.5V) that does toggle on & off when turn signal is operated, but not enough to light the bulb.

2. Parking lights are fully operational

Any specific steps to help me close out this whole ordeal appreciated.
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Old Jun 28, 2009 | 10:29 PM
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You did switch the flasher back right?
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Old Jun 29, 2009 | 08:07 AM
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yes. I actually went to Autozone & picked up a flasher. So, both are in place & functional. But, the side markers are not coming on at all as noted.

Last edited by ukengr93; Jun 29, 2009 at 08:11 AM. Reason: clarification that problem is still there
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Old Jun 29, 2009 | 08:45 AM
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Originally Posted by ukengr93
yes. I actually went to Autozone & picked up a flasher. So, both are in place & functional. But, the side markers are not coming on at all as noted.
So the turn signals parking lights and hazards are operating normally but the only thing wrong at this point is the front side marker lights are not working ?
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Old Jun 29, 2009 | 09:02 AM
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Exactly. Also, I am getting some slight voltage that toggles on/off as it should when called upon at the sockets, but not enough to light the bulbs. I know the side marker bulbs are good.
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Old Jun 29, 2009 | 10:24 AM
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The 12v for the side markers are fed directly from the turn sig/parking light wiring-just jumpered over so to speak---where are you grounding your test lamp,try going to the neg term of the battery or alt case and see if that makes a difference.

The side markers a little tricky because the grounds are shared-
When the turn signal is on the side marker grounds through the parking light bulb
When the parking light is on it grounds through the turn signal bulb
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Old Jun 29, 2009 | 03:53 PM
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I just tried grounding straight to the alternator & on both sides only registered about 0.20 volts on and off w/ flasher. Same as if I just tested at the socket. Any ideas?
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Old Jun 29, 2009 | 04:44 PM
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Originally Posted by ukengr93
I just tried grounding straight to the alternator & on both sides only registered about 0.20 volts on and off w/ flasher. Same as if I just tested at the socket. Any ideas?
If you test the 2 contacts inside the turn/park light socket you should get the same reading because they are attached to the same wire. That is a weird circuit but let me go out and put a meter on the side markers and see what I get.

edit-did you test the other parking light wire in the socket with the parking lights on ?

Last edited by ...Roger...; Jun 29, 2009 at 05:52 PM.
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Old Jun 29, 2009 | 05:15 PM
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Originally Posted by DWncchs
If you test the 2 contacts inside the turn/park light socket you should get the same reading because they are attached to the same wire. That is a weird circuit but let me go out and put a meter on the side markers and see what I get.
My meter could not keep up with the flasher,it went from 10 to 2 to 5 to .5. It was all over the place.
Do you have a 12 test light ?
If you do take the alligator end and attach it to a 12 v source like the back of the alternator. When you touch the probe end to anything grounded the light should light.This might take an extra length of wire on the alligator end but once you have it set up go down to the side marker socket and touch the probe to the contacts inside the socket-ign key off,headlights off and turn signals off. The test light should show a ground on both contacts.
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Old Jun 30, 2009 | 10:01 AM
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I don't have a test light, but I did get steady 12 V reading on the multimeter when I went from 12 V source at alternator & checked ground with probe on both contacts at both left & right turn signal bulb sockets. This should be the equivalent of what you suggested. All 4 contacts showed steady 12 Vs. Any ideas?
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