Join Date: Oct 2007
Location: Houston, TX
deathphoenix99 is offline
Re: Head light relay location???
In the glovebox, there is a Daytime Running lamps relay (If applicable). To access, you need to push on the top center of the access door and push down. There should be a up to 3 relays behind the panel. I believe they are (not in any order) DRL relay, Fuel Pump relay, and horn relay. I believe that is their location, 94 doesn't have the relays in the glove box, so it's a bit different for me.
But on 95-97, there isn't a "headlight" relay. The Headlights power goes through the multifunction switch. And while there were some subtle changes, 95-97 are about the same in how they are designed to work.
For Composites: If the DRL relay is bad, it shouldn't effect the headlights. The DRL is a parallel circuit to the headlight circuit, but if the relay goes bad, it's possible the left high beam won't work. This would be unlikely though as the DRL relay would have to lose connection or be stuck in the "on" position as the high beam ground is through the normally closed side of the relay. 96-97 is slightly different, but they both are very similiar in how they work, and the same thing applies. Neither one have "headlight" relays. If you don't have DRL's, then you won't have any relays in the headlight circuit.
For sealed beam: If the drl relay is stuck in the "on" position, the whole left headlight may not work, as the DRL relay is the ground for both high and low beam on the left side. Or it's possible the the ground will back feed through to the right side, making both headlights very dim. HI's and lows will be effected in this scenario. If you don't have DRL"s, then once again, no relays in the circuit.
OP: Could you tell me more about your problem, is it constant? How long does it take for them to turn off, and how long before they come back on? I'm guessing it could be a bad ground, or possibly a bad multifunction switch or headlight switch. I need a little bit more info to help you diagnose your problem.