C2 Turn Signals Stopped Working

[Jace H.]

I replaced the turn signal circuit with a new GM replacement and it worked great for a few months. It stopped working today. The lever works and clicks as normal but no blinking lights. What do I check first?

Thanks,
Jace Holt

[Ed Jennings]

Re: C2 Turn Signals Stopped Working

First check to see if the brake lights work. If they do, the problem is prpbably in the switch or the connector to the switch. If not, check the ground wire. The tail lights won't work either if the ground is bad. If you an't find the problem, post as much info as possible as to what does and what doesn't work. That will narrow down the problem.

[Tracy C.]

Re: C2 Turn Signals Stopped Working

Jace,

It might be as simple as a blown bulb... As previous post mentioned, more info will help.

good luck,
tc

[Jace H.]

Brake Lights Work

Guys,

Brake lights work.

Thanks,
Jace

[Peter L.]

Re: C2 Turn Signals Stopped Working

Jace - I checked the various posts and didn't see specifically what year the car is. If I missed it I apologize, but if not that info would be useful. Thanks, Pete

[Ed Jennings]

Re: C2 Turn Signals Stopped Working

Well, if the brake lights work, they are the same circuit as the rear turn signals, so the problem is in the dash area most likely. First suspicion is the switch, or since it's new, the curved connector it attaches to. Do the front turn lamps work? Also could be a flasher, if they are wired like the earlier cars. They get t/s power from the flasher, but I'd have to look at a wiring diagam on a midyear to see if it's the same.

[Jace H.]

I Found The Problem - But Have Another Question

Peter, Ed and Tracy,

Thanks for your willingness to help me. I figured it out and am pleased to say it was an easy fix. I had spent part of the day yesterday putting my console back on and the side panels (air vent). I did not get the "Flasher" connector back on the can securely enough (should have looked at that first). But, I have another question. All of my interior lights work except the one that has the green cover over it for lighting up the dash controls. It clips on just below the clock. I tried 2 different bulbs but still no light. Is there any suggestions on what to try next. Of all the interior lights I guess I could live without that one. The car I am restoring is a low mileage 67 roadster that sat for along time.

Thanks again,
Jace Holt
#28944

[Ed Jennings]

Re: I Found The Problem - But Have Another Questio

It may not be grounding properly, assuming you have checked and have voltage at the socket. Been a long time since I worked on one of those particular lights and I can't remember if it grounds on the clock or if it has a dedicated ground wire.

[William C.]

Re: I Found The Problem - But Have Another Questio

I believe it grounds via the clip that holds it to the steel in the clock retainer (single wire system) It will not light unless grounded and is very difficult to see when working unless in absolute darkness

[Peter L.]

Re: I Found The Problem - But Have Another Questio

Jace - Is this a C60 (air condition equipped) car? If so, there should be two green covered (filter) bulbs and associate hardware that attach to the clock mounting bracket. Are the clock lights working? If so, the clock ground should be good; but where is the other green covered bulb and associated hardware? Keep us posted. Pete

[Jace H.]

Re: I Found The Problem - But Have Another Questio

Peter,

My car is a non C60 Air car. Only one of these lights exist and the clock lights work properly. I have it attached correctly metal to metal. I am scratching my head. The dials do not light up at night but everything else does. Do I have one bad wire? I guess I need to get the volt meter out and check the wire forward the socket?

Thanks,
Jace

[John H.]

Re: I Found The Problem - But Have Another Questio

Jace -

The heater control bezel light socket assembly picks up its ground from contact with the bottom of the clock outer case; it clips into the slot in the bottom of the fiberglass clock mounting bracket, and "scrapes" the bottom of the clock case when the clock is installed (the clock case grounds back to the cluster ground connector at the top of the cluster). That light won't work unless the clock is installed in its cavity and its connector is attached; the black wire in the clock connector is the ground path from the clock case back to the cluster ground.