69 instrument lights no worky

[Patrick Grove]

Anyone with experience/knowledge trouble shooting the dash lights on a 1969? They were kinda dim, but always worked until recently. Gages still work fine. Fusses are fine. Plan to pull the dash soon to check connections. Any advice will be appreciated.

 

[Sheriff41]

Common issues are poor grounds, running halogen headlights without a dedicated relay, and a failing or dirty headlight switch. On the switch, make sure the dimmer rheostat and contacts are clean.

 

[giantpune]

My money is on the resistance wire coil on the front of the headlight switch. You can pull the switch out and bench test it with a multimeter and a 12v DC power supply.

You can also test by just putting a jumper wire with some clamps on the sweeper that wipes across that wire and clamp it to the hot on the far end of it. That should make your lights go full brightness.

 

[Patrick Grove]

Thanks! Sounds better than pulling the dash for starters, and likely to be the culprit too. Mucho apprciato. I'll let you know how I make out guys.

 

[midlife]

Ummm...you're going to have to pull the dash to access the headlight switch.
Also, check the contact points on the dash cluster connector.

 

[Patrick Grove]

Chuck, on the halogens, where do you put a new relay in if needed? I did install halogens about 10 years ago. Would you add it up by the core support?

 

[Sheriff41]

That's where I put the relays on my 70. I'll get a picture for you.

 

[Sheriff41]

Here ya go:

 

[Sheriff41]

Check with @TheRktmn https://www.rccinnovations.com/index.php?show=menu-hrk-all for a relay kit. Bob is a member on here.

 

[giantpune]

Ummm...you're going to have to pull the dash to access the headlight switch.
Also, check the contact points on the dash cluster connector.

I replaced mine without having to pull the dash.