• Hello there guest and Welcome to The #1 Classic Mustang forum!
    To gain full access you must Register. Registration is free and it takes only a few moments to complete.
    Already a member? Login here then!

Help! Dash Lights Questions

M

MarkStang

Member
My dash lights stopped working as well as the indicator for the shifter. Fuse is fine but when I check voltage with fuse in both sides are nill , like .4 volt and when I dim the switch it goes to .1 volts. Without the fuse in hot side is full voltsge. The dimmer control has been shorting. I have had to fug to get dash lights. I can not remember if the shifter light is tied into this.

Is my light switch the cause?
If one lamp is out will all be out, I can not remember.
I am actually hoping it is the dimmer.
I have always had this dimmer issue and worked around it , The only thing I did recently was put in a speedo cable. Could it be a dash ground? I seem to remember that the dash lights worked with the bezel flopped out.

Thanks for your help.
 
I believe the shifter light is separate from the dash lights as in it is on when the key is on.

Yes, it could be a dimmer problem. Move it around and twist it a see if you get a bit of light.

Lamps burn out individually UNLESS the problem is main power to them or a bad ground.

Did they get knocked out of the sockets when you removed the dash?
 
Hmm where is the ground for the dash light?

I checked all bulbs 18 times, argh.

I suppose it could be the dimmer switch. I remember a ground or plug under the AC unit I can check for the shifter.

Thanks for the help so far.
 
On the '65/'66, there's a separate ground strap for some of the indicators. It's not part of the main harness.
 
One of the indicator LED light has a ground strap. I just saw that NPD has a repo switch for only 14 dollars. So if fresh eyes can not fix it tomorrow I will go for the new switch. I did some searching on the net and found that the repro is cheap but seems to work just fine.

Thank you for your help again. I will update the resulting fix.
 
Fixed with a new headlight switch. The cheap 14 dollar repro. The grounding strap was not needed. The shift bezel was tied into the same switch.
 
You must log in or register to reply here.
Back
Top