electrical issues with turn indicator in dash

[BrokenArrow1971]

I am having issues with my turn indicator lights in the dash 1971 c20. When I turn on parking lights or head lights both turn indicators light come on but do not blink. I replaced the headlight switch but that didn't correct the problem. Does anyone have some ideas?

Thanks in advance.

[notsolo]

Anything replaced ?, Any new wiring?...My rule of thumb for all wiring... Check ground 1st. I would check the ground straps on all the sheet metal and cab, then check everything else. The dash bezel should have its own ground and also 1 in the plug for the signals.

[Greasey Harley]

Originally Posted by notsolo

Anything replaced ?, Any new wiring?...My rule of thumb for all wiring... Check ground 1st. I would check the ground straps on all the sheet metal and cab, then check everything else. The dash bezel should have its own ground and also 1 in the plug for the signals.

X2
my experience, most electrinal problems stem from two sources.
#1: hacked wiring. People have cut, added to, rewired, and generally butchered the wiring.
#2: corroded or loose connections (usually grounds)
...often times, both
If it is put back to original and all connections are solid 9 times out of 10 everything will start working.
Also make sure all bulbs are good.

[Tumbleweed1C4]

X2 on a ground somewhere. If it's weird, it's a ground.

[33 coupe]

X3 definitely a grounding issue. Make sure the gauge bezel is grounded as Greasy suggested