Low battery voltage (headlamp relay cuts out).Start the car,measure charge,let charge.Wiring shortcircuit must track the problem/wires.Hint:the brake switch trigger only with the keys on.If it continue to cut the light even with the keys out ceck wiring .Worning:shortcircuit can put a car on fire.
SOURCE: dash lights, tail lights, brake lights, not working 1965 mustang
Probably either a bad ground (broken wire, rust) or a bad headlight switch. The brake light circuit goes from the stop switch (Located up above the brake pedal) through the headlight switch, through the light bulbs to ground. The tail light circuit goes through the headlight switch, through the bulbs and to ground. The only things that are in common are the headlight switch (Is this the switch you replaced?) and ground.
Not much, but hope this helps.
Have a super day!
Ron
SOURCE: ford expedition yr'00 headlight not working checked fuses..
The low beam headlamps have a seperate fuse for each lamp in the central or underdash fuse panel.
The right headlamp is fuse fuse 26 (10amp) and the left is fuse 28 (10 amp). These fuse are hot only when headlamps are on so you need to test them with a test light with headlamps on. If they do not have power to them then concern is either headlamp switch or daytime running lamp relay if your vehicle is equipped with this feature, or a bad multifunction switch.
Power leaves the headlamp switch on the RD/YE wire and goes to multifunction switch. It leaves multifunction switch on the other RD/YE wire The wire will then go thru either a connector c2003 located behind the passenger side air bag behind the dash or to the DRL relay if your vehicle has this feature and leaves there on RD/BK wire to the headlights .
SOURCE: 2001 ford explorer sport trac
Just found the answer on another site. Sure enough went out removed the 3 philips head screws in the steering column opened it up and walla a wire connection had pulled itself free. When my son uses my truck he always uses the tilt steering, when I get in I have to readjust it. because of this the wire connection pulled itself out. I simply pushed it back in an blinker and brake light are now working. My husband is now trying to figure a way to secure the wire connection so it doesn't pull itself out again. Hope this helps others, either by saving the cost of a dealership or machanic or from getting rear ended.
SOURCE: Blows fuses when parking lights are turned on. Headlights work fine even running lights.
If it only happens when you turn the switchto the parking lights then it is most likely the swich that is the problem. Light swich failure appears to be a common fault with fords
SOURCE: dash lights and tail light not working
The dash lights and tailights are on the same fuse link. everything else will work like brake lights and turn signals but this one fuse causues alot of problems. Sometimes this fuses isnt marked on your cover so you might have to look in the maual to find the right fuse . some will be under the hood some will be under the dash .
Good luck to you all on finding this little fuse hope you find it before the cops pulls out behind you when its dark :)
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