Originally Posted by 69incharleston
Hello everyone, I am a proud new owner of a 69 malibu and new to the site. I found alot of good info here already and found the sticky on the headlight switch very helpful.
My problem is as the title states, when the headlight switch is pulled out I am not getting any tail or dash lights. I tried 2 different switches to no avail. I even tried jumping a wire from the lead hot wire on my switch to my brown tail light wire and they will turn on. My fuses are good, and I even tried simply splicing my tail/dash lights to my blue headlight wire on the switch. That worked only for a few weeks before it burnt out the wires coming off my foot dimmer switch, I removed the splicing, replaced the burnt wires and am back at square 1.
I am hoping someone is familiar with this problem because me and my local shop are just baffled!
Hi David, Welcome to TC.
Kudos to you for referencing the sticky in this forum. Many experienced users don't even search those first.
If you get dash lights and tail lights by jumping the connectors in the headlight connector to the red wire, that tells me you you have a power issue dealing with the orange feed wire.
Most likely you have a bad fuse or bad fuse clip connectors. Even if a fuse isn't blown, the element inside can go bad (loose connection with the outside connector). Also, these cars are notorious for the clips apart of the fuse block corroding and forming a sometimes invisible layer between the inside of the clips where the grab the outer barrels of the glass fuse.
What you need to do is take a test light and probe each side of the fuse itself. Both ends should light up at all times as this is on constant battery power. THEN probe each fuse block clip to ensure there is a connection. Again light should light up on both clips.
Even if it does light up, I would highly suggest you remove any risk for voltage drop by taking fine sand paper and cleaning the inner surfaces of the fuse block's clips thoroughly. Install new fuse as well.
Take your test light and and probe the orange wire on the on the headlight switch connector. You should have power there. If you DO NOT, but you have power down below on the fuse clips, there is a break in the wire or damage to the orange lead's connections between the block and harness.
The dash lights get power from the tail light circuit first before they go thru the dash light fuse. Get the tail lights working FIRST and we can go from there.
Although you already did it, (and lot of others have to), never just "tap" into the blue wire of the headlight switch for make-shift power. This is circuit that is protected by a high current thermal breaker inside the headlight switch. By the time it trips, your tail/dash light wiring can get quite toasty. Not good. Not sure why your blue feed burned up, either poor splice or there was an issue on that line--what you added (intermittent short) that drew excessive current and wasn't properly protected by a glass fuse.