So I got myself a set of DDM Tuning HID's for my fog lights a while back. I knew my passenger fog light doesnt work and at one point I tried soldering the ground inside the assembly and it worked for a little bit then died again. So before installing the HID's I tried to understand what is going on with the wiring, so I put a test light to the positive connector to the fog light housing and no light from the tester. I then go to the the #30 fog light fuse and put my tester to the positive side and theres light!! So I ruled there was a break in the wire so I ended up pulling the double leaf spring positive connector (the connector that holds the positive end of the fuse) out to put a new wire onto it and run a new positive wire to the light. So here's the mystery, I put the new double leaf spring connector in with the new wire and try putting my light tester on the positive side of the #30 fuse and no light.... So my question is now that I got a new positive connector and positive wire running from the #30 fuse why am I not getting power from that fuse now. This was actually very difficult to write and I tried to make it all make sense but if you need ANY clarification just ask.
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1991 325i Calypso Coupe
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Sounds dumb, but are your headlights on, fog light switch on, and high beams off when you are checking for power at fuse 30?
It sounds to me like you removed a wire and terminal from one side of fuse 30 (left it dangling?), and inserted another wire and terminal back into the same spot and ran that wire to the right fog light.
What color was the wire that you pulled out? How sure are you that the wire you removed was the wire to the fog light and not the power wire coming from the relay? Was it the inboard or outboard side of the fuse?
Also, do you have power at fuse 29 and/or is the driver side fog light working?Last edited by jperris; 02-17-2014, 09:07 AM.1989 Bronzit 325i -
Headlights on, fog light switch on, high beams are off.Originally posted by jperris View Post
Nailed it.It sounds to me like you removed a wire and terminal from one side of fuse 30 (left it dangling?), and inserted another wire and terminal back into the same spot and ran that wire to the right fog light.
Okay here's where I probably messed up. Which is inboard and which is outboard?What color was the wire that you pulled out? How sure are you that the wire you removed was the wire to the fog light and not the power wire coming from the relay? Was it the inboard or outboard side of the fuse?
The driver side is working and I do have power to it.Also, do you have power at fuse 29 and/or is the driver side fog light working?1991 325i Calypso Coupe
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The power comes from the fog light relay to the inboard side of fuse 30, and the fuse bridges the power to the outboard side, which should go out to the right fog light.
If you pulled the contact out of the inboard side of fuse 30, you need to put it back and then make sure there's power there once again.
If you only fiddled with the outboard side, yet do not have power at the inboard side, your problem is somewhere between the fog light relay and the fuse.Last edited by jperris; 02-17-2014, 04:43 PM.1989 Bronzit 325iComment
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Inboard is towards the middle of the car, outboard is towards the fender.Which is inboard and which is outboard?Comment
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is this correct? The inboard is negative, and the outboard is positive?Originally posted by jperris View Post
And I pulled the outboard one.1991 325i Calypso Coupe
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Your perception of inboard and outboard is correct.
There isn't really a positive or negative side of a fuse, but if I was forced to call one side positive, it would be the inboard side, because it is closer to the battery (+) terminal in the circuit.
I noticed that in the picture, your fog light relay is missing. That's where the power comes from that supplies the fuse in question. I hope you're not expecting to get any power with that relay missing.
Like I said, if you're getting power to the inboard side of fuse 29, but not fuse 30, the problem lies somewhere between fuse 30 and the fog light relay.1989 Bronzit 325iComment
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Originally posted by jperris View Post
The relay is missing because I remove it to get to the screw that holds it down. Alright I'll check for connection between 30 and the relay!1991 325i Calypso Coupe
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You might want to start giving up like me haha. So this is what I did: With the Relay in, and the fog switch on, lights on, highbeams off, I put a tester light to the #30 fuse outboard side and the tester light doesnt come on. I put the tester light to the inboard side of fuse #30, no light. I put the tester light to the outboard side of #29 (driver side) the tester light glows! I put the tester light to the inboard side of #29 and the tester light doesn't come on.
I tried wiring another set of wires by splicing into my driver side fogs and put them in my passenger side, just popped the #29 fuse. So that's not a solution.1991 325i Calypso Coupe
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::facepalm::
You obviously have no idea what you're doing and shouldn't be messing with electricity. Go read a book.1989 Bronzit 325iComment
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Fuck no I don't know a damn thing! I'm teaching myself with this car. Thanks for the help so far man.1991 325i Calypso Coupe
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Welp I got them in! No need!
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Nice!1989 Bronzit 325iComment
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