Turn Signal Flasher Buzzing 1993 Hardbody - Nissan Forum
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post #1 of 8 Old Jun 12th, 2006, 04:47 PM Thread Starter
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Turn Signal Flasher Buzzing 1993 Hardbody

I've spent quite a bit of time lurking the forums in the past, but I finally decided to break down and register... I have a bit of a problem.

As noted in the title, I have a 1993 Hardbody pickup, and the turn signals don't work. The hazard flashers work fine, but when I activate the turn signals, it just buzzes at me. Normally, this wouldn't be any big deal, but this one has me stumped. So far I've:

A. Replaced all the bulbs. Same results.
B. Replaced the flasher unit. No improvement.
C. Cleaned the combination switch. Nada.
D. Bought a new combo switch from Nissan and replaced the old one. No go.
E. Threatened the truck with a hammer. It just looked at me like I was stupid.

Does anybody have any advice for me? I really need to get this thing licensed, but the mechanic won't pass it without turn signals. Thanks for your help.
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post #2 of 8 Old Jun 14th, 2006, 06:39 PM
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Quote:
Originally Posted by Spinlock
I've spent quite a bit of time lurking the forums in the past, but I finally decided to break down and register... I have a bit of a problem.

As noted in the title, I have a 1993 Hardbody pickup, and the turn signals don't work. The hazard flashers work fine, but when I activate the turn signals, it just buzzes at me. Normally, this wouldn't be any big deal, but this one has me stumped. So far I've:

A. Replaced all the bulbs. Same results.
B. Replaced the flasher unit. No improvement.
C. Cleaned the combination switch. Nada.
D. Bought a new combo switch from Nissan and replaced the old one. No go.
E. Threatened the truck with a hammer. It just looked at me like I was stupid.

Does anybody have any advice for me? I really need to get this thing licensed, but the mechanic won't pass it without turn signals. Thanks for your help.
Mabye a bad socket, or power or ground wire? Have you checked continuity at the sockets (or at least just before the sockets). That might narrow it down to a single light.


Jerry
2004 Frontier, King Cab, XE, 4x1, 4-cyl, 5-spd
post #3 of 8 Old Jun 15th, 2006, 12:18 PM Thread Starter
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Well, I was up until 4-o-clock this morning running new wiring from the combo switch to the front lights and the connecter right underneath the seat (right next to the MCM.) I tested the wiring going back to the back lights, and there's not a short there, although both sides show a short when everything's hooked up.

In the process of hooking up an auxiliary power tap, I broke the end of the battery cable, and couldn't get the truck started. I left it for the night, and bought a new cable end this morning at O'Reilly's (75 cents for the thing... the window handle I need is $10!) and got the truck started. And... it does the exact same thing! With modification.

The turn signals still make the flasher buzz. I now have a burned out bulb, which is FINALLY making the hazards flash faster. When I activate both the hazards and the turn signal, the hazards slow down to normal speed. When I replace the original flasher with another I happen to have on hand, the hazards buzz, and the turn signals buzz.

I forgot to mention in my original post that I bought the truck knowing it needed some work. It had some front end damage which I've since repaired, and the front turn signals were all busted up. The friend I bought the truck from was planning on repairing it if I didn't want it, and bought some turn signals.

The problem is, those turn signals had a three-wire connector on them. My truck has a two-wire connector. I modified the new lights with the old connectors, which I managed to salvage, so that I could use the factory connectors with it. Could that have something to do with it, possibly?

Thanks, JK
post #4 of 8 Old Jun 17th, 2006, 02:25 PM
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Is possible, also a botched up trailer lighting wiring.
post #5 of 8 Old Jun 17th, 2006, 11:27 PM
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Quote:
Originally Posted by Spinlock
The problem is, those turn signals had a three-wire connector on them. My truck has a two-wire connector. I modified the new lights with the old connectors, which I managed to salvage, so that I could use the factory connectors with it. Could that have something to do with it, possibly?

Thanks, JK
the turn signal with 3 wires 1 wire pos. for turn 1 wire pos. parking light and 1 wire for ground works on both sides of light, you can still use this type of socket but first you need to get a volt meter and test the wires feeding the socket in your case one is ground and one will be hot "flashing" with hazard or turn signal on,

once you know which wire is which,
hook the ground up to the ground side of the socket use a volt meter, set it to continuity touch one probe to the inside -side of socket then probe the 3 wires to make sure you find the ground only 1 wire will have continuity,

once you find that wire hook it up to the ground on your truck either to a good chassis / body ground or to the wire feeding the original socket or both,

now that you know the ground is good you need to make sure your bulb is a dual element bulb. should be a 1157 2157 3157 you'll just have to look up the bulb using the year of the vehicle it came from ,

ok so by now you should have a good ground, and new bulb that fits the new socket, so on to the pos side of the socket,

peel back the coating on the sockets 2 positive wires like your going to tie it to another wire, do the same thing to your pos wire feeding the socket,"""be careful not to let the positive wire touch anything that's grounded"""

now turn on your hazard lights since we know they work fine touch the hot wire to each of the sockets hot wires once you find out which wire is making the bulb flash the brightest tie the 2 wires together and tape them up or install shrink tubing,

now if you want the parking light to work just prob your corner parking lights for a hot wire and tie a wire into it and to the one wire left on the socket

ok once this is done on both sides you should have turn signals that work, but you may still need to replace the flasher or fuse one more time, cause if you had a ground feeding the flasher it may have burned up "maybe" also check to make sure you have the rite type of bulbs in the other sockets front and rear and while you in the rear of the truck look under it for a trailer wiring harness make sure it wired rite and not corroded or shorting out.

hope this helps if you already knew how to do this then maybe it will help someone else someday
post #6 of 8 Old Jun 18th, 2006, 12:24 PM Thread Starter
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Well, after much work, I finally got it (I think.)

I ended up disconnecting everything I could from the turn signal switch to the back lights, and traced down the short to somewhere between the connector right next to MCM, the turn signal switch, and the front lights. A friend and I were having major problems trying to tear the dash out, so I ended up running all new wiring from the turn signal switch to the front lights and the connector right by the MCM (the one just inside the cab compartment, under the passenger seat.) I need to run new wiring for the hazards now, which just buzz when I turn them on, but that won't take any time at all. I quit working on it the other night at 2:30 AM, when I broke the battery cable end and couldn't get it to start. Plenty of power, but no start. In any case, the turn signals would only work with the hazard switch on, but I fixed that by replacing the turn signal fuse. Now I have turn signals... and as far as a bad trailer wiring job, that's possible. I've got a lot of experience with electronics, but the former owner, a buddy of mine, is not quite so gifted in that area.

I'll put up pictures and whatnot when I've got it licensed. I had to get creative with some things, and I think it'd be useful to document it. Thanks to everybody who contributed!
post #7 of 8 Old Jun 19th, 2006, 04:25 PM
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sounds like you had more problems than originally thought
post #8 of 8 Old Sep 3rd, 2012, 01:00 AM
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Is that what needs to be done? redo the wiring? It's not the answer I was hoping for...

I do have replaced the flasher part ($66 & non returnable) replaced the turn signal lever (got that at pic-a-part for $25).

BTW
I have a 95 Pathfinder
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