Headlight Dim

That would be the screw attached to the fender at the top, that is near a strut for the hood? If so, that is the screw I used for ground. That's the one whereby I spliced connections from the wiring harness plug (the part that plugs into the wiring harness for the headlight. It had about 7 wires, and I tried most of em, got sparks most times, and caused the lights to come on good, but without aid of the headlight switch in the car. That one I couldn't figure out. Like i was bypassing the switch, and it worked good, you just couldn't shut it off.

If I could add an arrow, I could show you I spliced on the back side, where the thinner wires are. Only one I didn't do was a pure black one, but I assumed it was for the turn signal lights, (white/brown/black wires go to the signal on the light) (Green, Blue, Red go to the headlight) and by then my last splice had fallen apart.

This is what I think you mean. Yeah that was tight as can be, and I used that as a ground point to determine continuity and hook-up a new splice for ground. Which then set the lights on, but you couldn't shut em off.

Problem is low and high have two seperate grounds. When you add ground to get bright lights what color wire and is it at that plug in pic? Possible Light Green/Black or Red/Black?

There are 3 wires there.
1 is thicker and all black.
2 are thinner one is black with a lime green stripe, the other is plain black.

Check for power you should have power at all time (DK GRN /ORG wire)

My diagrams show different colors, red/blk goes to the DRL relay, Lt Grn/Blk goes to the multifunction switch and grounds through that, and Dk Grn/Orange, goes to he Battery junction box under the hood and is #19 for the right headlamp, You have DRL, but does it have Autolamps?
Principles of Operation

The headlamps are supplied power at all times from the battery junction box (BJB). Ground is supplied through the multifunction switch and the headlamp switch. The flash-to-pass feature has ground supplied through the multifunction switch.

Place the headlamp switch in the ON position.
Place the multifunction switch in the high beam position.

Do the high beams operate correctly?
Yes
REPAIR circuit 13 (RD/BK). TEST the system for normal operation.

No
For LH headlamp, REPAIR circuit 160 (DB/WH). TEST the system for normal operation.

For RH headlamp, REPAIR circuit 161 (DG/OG). TEST the system for normal operation.

Looks like repair of Circuit 161. Cause with the high beams on and the switch on, I get nothing on the passenger side front headlight. Also if I try the whole pass to flash thing, the light goes out completely.

Dont forget about how the circuit grounds, through the switch and the mutifunction switch. Common enough problem is the mutifunction, did the PDF I sent have testing for that?

It looks like there is a path to the multifunction switch. We'll try the grounds first, and work backwards from there. A multifunction switch is a lot more expensive than a couple of wires.

I just reread your answer, and now I understand. Somehow I wouldn't have thought there was grounds on the switch itself, given that it works for most other things, and it's a lever in the steering wheel. But I now see that perhaps there might be something to that as well.

All 3 wires at the headlight are power(hot) grounding is done at the headlight and multifunction switches, If you have the manual test those, if not, after I get back from work, I will look for the info and post it.

Thanks I have received a few items from you. It does makes sense that all the wires were hot, which is why when I forced em to bypass to ground I either got a shock, or the headlight came on brightly.

I wonder how the headlight itself could ground. After all, it's plastic base is surrounded by a plastic shroud and dome. Kind of a funky system if you ask me. But I just replaced a broken Suspension link tonight on the same car, so we are making progress.

Brett

Dont forget used parts at a junkyard. Could save you a lot of money.

It was the headlight switch, I checked that. It wasn't the multifunction switch, that checked out okay.

It was a wire somewhere along the way from the switch to the light that wasn't feeding power to that side of the light.

I ended up having to pay a place $265 to figure it all out. Fortunately they were also able to fix the dashboard lights which had gone out by then too. I for the life of me, could not find that wire.

These electrical things are the hardest to deal with. I had to give up the ghost, after taking the dash apart, testing many meters of wire, and basically splicing into nearly everything.

Thanks for the help, I will be back next time for the next disasterino.

Yep it takes some practice and experience with certain models to get the hang of it. Good luck.

Do you have the daytime running lamp option? Could be a problem with the module if yes. Otherwise you'll have to start checking over the headlight switch and related pieces. Disconnect the headlamp switch as a first step to see if any changes. You'll have to get a repair book, chiltons or such, to guide you along, it would help. Or there could be a wiring issue, bad ground, corrosion, elsewhere in the system. Hopefully not