Where is the headlight fuse located?

Tiny
DAVENOOB
  • MEMBER
  • 2005 FORD FIVE HUNDRED
  • 6 CYL
  • AUTOMATIC
  • 120,000 MILES
I have a short in my headlight wiring that causes the lights to flash and flicker when the car is off. I don't have time to repair a the moment so what fuse and where is it located to stop power to the lights when not in car? Thanks
Saturday, March 8th, 2025 AT 4:25 PM

7 Replies

Tiny
CANNON1349
  • MECHANIC
  • 862 POSTS
Hello, I will attach the diagrams for both the fuse box under the hood and the fuse box under the dash on the driver's side. Seems like F9 under the hood will turn off junction box inside the car.

William
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Sunday, March 9th, 2025 AT 7:39 AM
Tiny
DAVENOOB
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  • 303 POSTS
Where is that fuse box? I've searched under dash and all I found was the security box. Also, that mentions every light except the headlamps or high/low. Does that seem possible?
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Sunday, March 9th, 2025 AT 4:00 PM
Tiny
CANNON1349
  • MECHANIC
  • 862 POSTS
Hello, the SJB is under the dash on the driver's side. Likely behind the driver door, there should be a small panel in the instrument cluster to take off. However, if you pull F19 under the hood it will disable the SJB and therefore keep the lights turned off. This should be a 40 amp green fuse. Yes, there is not a dedicated fuse for just the headlights. I will attach a wiring diagram.

William
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Sunday, March 9th, 2025 AT 5:56 PM
Tiny
DAVENOOB
  • MEMBER
  • 303 POSTS
Behind the drivers door? Do you mean where the dashboard meets up with the door when closed? I've looked all over and can't find it. What's does s stand for in sjb? ? Junction box? Thanks
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Thursday, March 20th, 2025 AT 3:30 PM
Tiny
DAVENOOB
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  • 303 POSTS
This says f9 is a 20amp fuse.
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Thursday, March 20th, 2025 AT 3:34 PM
Tiny
DAVENOOB
  • MEMBER
  • 303 POSTS
I'm sorry I misread lol. So, the f19 under the hood is a 40 amp fuse my bad thanks.
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Thursday, March 20th, 2025 AT 3:35 PM
Tiny
CANNON1349
  • MECHANIC
  • 862 POSTS
Hello, SJB stands for Smart Junction Box. It is located under the dash on the driver's side. It will be found right next to / in front of the emergency brake pedal. There should be a cover to remove to access those fuses.

William
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Thursday, March 20th, 2025 AT 3:51 PM

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