Signal lights not working - The 1947 - Present Chevrolet & GMC Truck Message Board Network

northerngmc · 04-06-2007, 06:50 PM

OK I bought a 69 GMC 1/2 ton and I am trying to get it road worthy......

Signal lights do not work at all.

Hazard lights work on all four corners and the flasher is working in this function.

Taillights work.

Brake lights work.

Headlights work on bright and dim.

But when I move the indicator nothing happens (key on, but engine not running while in the garage).

The truck has a 3 speed manual column shift and I had to swap that out as the shifter was broken off and the PO had made a mess of the column with a homemade shifter. The signal lights did not work before I changed the column either. Also when I changed columns the PO had cut the wires going into the column, then reconnected each one, I guess he didn't see the plug to disconnect!

I do have a multi-tester and I would like to know what tests I can run to try and find the problem.

PanelDeland · 04-06-2007, 08:27 PM

Sounds like it is in the column itself.The parts are fairly reasonable for rebuilding the column switch.Should be a troubleshooting and rebuild thread in the FAQ's.

Longhorn Man · 04-06-2007, 08:37 PM

being that you've had 2 columns in there, I can't see the same fault on 2 pieces... it COULD happen, but not likely.
I'll assume you have checked/tested/replaced the fuse.
Have you tried swapping the flashers from one spot to the other...swapping the 4 way one for the turn signal one? That's a quick way to tell if one is good.

68 P.O.S. · 04-06-2007, 08:47 PM

Quote:

Originally Posted by northerngmc

when I move the indicator nothing happens (key on, but engine not running while in the garage).

My truck turn signals only work when when the engine is running. Have you tried it with the engine running?

Longhorn Man · 04-06-2007, 08:53 PM

they should work with the engine off, key on. Everything should work like that.

68 P.O.S. · 04-06-2007, 08:54 PM

Hmmm, then what's wrong with mine?...

northerngmc · 04-06-2007, 11:02 PM

Quote:

Originally Posted by Longhorn Man

Have you tried swapping the flashers from one spot to the other...swapping the 4 way one for the turn signal one? That's a quick way to tell if one is good.

When I first read this I thought, what is the guy talking about, two flashers! I have never had a vehicle with two flashers.........

Well I guess I am the idiot, I looked under the dash at the fuse box and yes I only have one flasher, as I had expected, but room for two, not what I had expected! I swapped the flasher over to the turn signal circuit, and guess what, I have signal lights, well at least on the left side!

I think I am having a ground problem on the right rear corner as my right rear brake light is also not working again.

Longhorn Man, thank you for pointing out the obvious. I think I could have, probably would have spent days testing and reading my manual, and still not realized the obvious!

Longhorn Man · 04-06-2007, 11:21 PM

that's the whole reason this board is here man.

PanelDeland · 04-06-2007, 11:30 PM

Great call LHM!!!

04-06-2007, 06:50 PM	#1
northerngmc Registered User Join Date: Jan 2004 Location: Whitehorse YK Canada Posts: 2,651	Signal lights not working OK I bought a 69 GMC 1/2 ton and I am trying to get it road worthy...... Signal lights do not work at all. Hazard lights work on all four corners and the flasher is working in this function. Taillights work. Brake lights work. Headlights work on bright and dim. But when I move the indicator nothing happens (key on, but engine not running while in the garage). The truck has a 3 speed manual column shift and I had to swap that out as the shifter was broken off and the PO had made a mess of the column with a homemade shifter. The signal lights did not work before I changed the column either. Also when I changed columns the PO had cut the wires going into the column, then reconnected each one, I guess he didn't see the plug to disconnect! I do have a multi-tester and I would like to know what tests I can run to try and find the problem. __________________ Blaine 59 GMC 9314 a.k.a. Whoopee 68 C20 50th Anniversary a.k.a. The Rat http://www.flickr.com/photos/northerngmc/ http://www.members.tripod.com/P-wee/index_032.htm 1.61803 is one H of a lot better than 3.14159, no really it is!

04-06-2007, 08:27 PM	#2
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,992	Re: Signal lights not working Sounds like it is in the column itself.The parts are fairly reasonable for rebuilding the column switch.Should be a troubleshooting and rebuild thread in the FAQ's. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"

04-06-2007, 08:37 PM	#3
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: Signal lights not working being that you've had 2 columns in there, I can't see the same fault on 2 pieces... it COULD happen, but not likely. I'll assume you have checked/tested/replaced the fuse. Have you tried swapping the flashers from one spot to the other...swapping the 4 way one for the turn signal one? That's a quick way to tell if one is good.

04-06-2007, 08:53 PM	#5
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: Signal lights not working they should work with the engine off, key on. Everything should work like that.

04-06-2007, 08:54 PM	#6
68 P.O.S. Registered User Join Date: Jan 2007 Location: Puyallup, WA Posts: 1,662	Re: Signal lights not working Hmmm, then what's wrong with mine?... __________________ 72 C10 lwb fleetside -stock 350/350 combo

04-06-2007, 11:21 PM	#8
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: Signal lights not working that's the whole reason this board is here man.

04-06-2007, 11:30 PM	#9
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,992	Re: Signal lights not working Great call LHM!!! __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.