Ok so when I was installing my fog lights today I heard a pop noise. No fuse was blown and everything seemed fine. I got home and went to get out of the car... And my nightmare began.... I heard the warning chime that my headlights were on. The key was out and they were on the AUTO setting. I turned them too off but they still stayed on. Park lights,headlights, tail lights, all lights on.
The only way to get them to go off is to pull the 80 amp fuse in the fuse box under the hood that controls the fuse box in the cab area.
PLEASE HELP!
I've checked all fuses and all are good, took switch off and plugged back in- still on.
Suggestions?? And is there an actual headlamp/auto light relay?
Ok so when I was installing my fog lights today I heard a pop noise. No fuse was blown and everything seemed fine. I got home and went to get out of the car... And my nightmare began.... I heard the warning chime that my headlights were on. The key was out and they were on the AUTO setting. I turned them too off but they still stayed on. Park lights,headlights, tail lights, all lights on.
The only way to get them to go off is to pull the 80 amp fuse in the fuse box under the hood that controls the fuse box in the cab area.
PLEASE HELP!
I've checked all fuses and all are good, took switch off and plugged back in- still on.
Suggestions?? And is there an actual headlamp/auto light relay?
Was installing factory fogs. It requires splicing into both fog wires on the light switch. I removed the whole fog setup until I figure out the headlights.
Sounds like a relay is fused together. Should be in fuse box they are much larger and cube shaped. Most of time they use several of same size and style, check and see if you have one and swap. Make sure it's for something that's not going to affect your car starting ie (hazard lights)
I can't sleep... Or function... This thing is like my 3rd child. And my Daily.
Where is the DRL module?
I've went over the wiring multiple times.... I'm positive something is stuck closed .... Probably welded that way when I shorted it out by connecting wires backwards.
Idk how it would back feed through the fog light wires though.... Grr
---------- Post added at 09:46 PM ---------- Previous post was at 09:44 PM ----------
It is EVERY light... Radio illum, steering illum, interior, tails, side markers... Everything
I can't sleep... Or function... This thing is like my 3rd child. And my Daily.
Where is the DRL module?
I've went over the wiring multiple times.... I'm positive something is stuck closed .... Probably welded that way when I shorted it out by connecting wires backwards.
Idk how it would back feed through the fog light wires though.... Grr
---------- Post added at 09:46 PM ---------- Previous post was at 09:44 PM ----------
It is EVERY light... Radio illum, steering illum, interior, tails, side markers... Everything
A relay would close weld itself if it got hot enough. That's weird about the radio though. And your drl module is (facing your car) on the driver side right by your fog lights unplug it and see if everything shuts off. If this doesn't work. Go one by one through all relays unplugging until u find the problem
Just look through the owners manual at all your relays and fuses. Start swapping relays of the same with with anything that has to do with the headlights/lighting. If that doesn't affect anything, it's possible you fried the harness somewhere and it's got a short (pop sound). That requires slowly pulling fuses and going through circuits until you find where the short is localized to. It could even be in the switch itself.
What were you touching specifically when you were installing the fog lights and heard the pop? I'd start looking into that wiring circuit before anything else. The diagram posted should help.
I connected the fog light switch wire (gray/violet)
The fog light indicator to a relay- one of them received 12 volts when it shouldn't and made a pop sound (short)
The short was a one time thing.
I'm currently thinking something in the SJB is wrong... Idk how easy it is to diagnose or fix. There is only fuses and two relays that are in related on the SJB.
BTW, this is why you disconnect the battery when playing with wiring.
This one guy (who can only be described as an idiot), cut the factory plug out of an '03 Mustang and was trying to hard wire a Kenwood up. After popping like 4 fuses and accomplishing nothing, I got an adapter harness to see what all the wires ran to, matched them all up by color, and had him turn it on. 15mins of my time and it worked on the first go.
Ok with a little light and some nice diagrams provided by you guys I solved this...
I also found a diagram for the SJB and broke that down... All good.
Decided to bypass switch and manually provide the feeds and voila... Headlights go off when ground is applied to the "off" position. Proceed to break switch down... What do ya know! The strip on the circuit board between the "off" pin and the ground pin is burnt....
So either spend 19.79$ on a new switch or fix this one... Prob do both.... But this looks challenging- VERY small space to solder and all around 12v/ground pins lol.
Thanks for all the input!!! Just glad I don't have to swap the SJB!
Ok with a little light and some nice diagrams provided by you guys I solved this...
I also found a diagram for the SJB and broke that down... All good.
Decided to bypass switch and manually provide the feeds and voila... Headlights go off when ground is applied to the "off" position. Proceed to break switch down... What do ya know! The strip on the circuit board between the "off" pin and the ground pin is burnt....
So either spend 19.79$ on a new switch or fix this one... Prob do both.... But this looks challenging- VERY small space to solder and all around 12v/ground pins lol.
Thanks for all the input!!! Just glad I don't have to swap the SJB!
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Mustang Evolution Forum
2.1M posts
50.9K members
Since 2003
A forum community dedicated to Ford Mustang owners and enthusiasts. Come join the discussion about performance, horsepower, modifications, troubleshooting, racing, and more!