Electrical gremlin issues, please help!
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Trailering
Joined: Apr 2023
Posts: 20
Likes: 3
From: Indiana
Electrical gremlin issues, please help!
Fuse 38, 20A, Trailer tow park lamps and backup lamps.
Went chasing down fuses in search of an AC issue only to find out that F38 was blown. When I put in a replacement fuse, the parking lights, interior lights, and radio all decided to stay on with no key.
Curious if anyone else has had an issue with this and any ideas of where to start chasing down the issue? Already got the wiring diagrams from AllData, just thought I’d check the forums before delving into the project.
Went chasing down fuses in search of an AC issue only to find out that F38 was blown. When I put in a replacement fuse, the parking lights, interior lights, and radio all decided to stay on with no key.
Curious if anyone else has had an issue with this and any ideas of where to start chasing down the issue? Already got the wiring diagrams from AllData, just thought I’d check the forums before delving into the project.
Thread Starter
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Trailering
Joined: Apr 2023
Posts: 20
Likes: 3
From: Indiana
Sorry, SHO. Been frustrated and fighting these gremlins and forgot my manners. This is on a MY02 Excursion 6.8 Limited.
Current issues include the following:
- stereo randomly turns on and off
- windows won’t go up or down
- if the fuse is in, the vehicle thinks the keys are in the ignition
I originally started checking fuses for the AC but noticed fuse 38 was blown. I put in a replacement and went along my day. After driving it, the lights refused to turn off. When I pulled fuse 38, the lights finally went off.
The above issues persist regardless of fuse in or out.
Current issues include the following:
- stereo randomly turns on and off
- windows won’t go up or down
- if the fuse is in, the vehicle thinks the keys are in the ignition
I originally started checking fuses for the AC but noticed fuse 38 was blown. I put in a replacement and went along my day. After driving it, the lights refused to turn off. When I pulled fuse 38, the lights finally went off.
The above issues persist regardless of fuse in or out.
Hotshot
Joined: Jan 2004
Posts: 19,768
Likes: 1,082
From: St Louis
- stereo randomly turns on and off
- windows won’t go up or down
- windows won’t go up or down
if the fuse is in, the vehicle thinks the keys are in the ignition
1. Has this truck gotten really wet from either rain or snow melt just before these problems arose?
2. Have you inspected the wiring around the fuse panel for evidence of critters chewing on the wiring?
Thread Starter
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Trailering
Joined: Apr 2023
Posts: 20
Likes: 3
From: Indiana
Cursory glance, I don’t see evidence of any critters. I’ll pull the fuse panel out tomorrow and run through the loom.
It has been raining quite a bit here recently. What could that cause an issue with?
It has been raining quite a bit here recently. What could that cause an issue with?
8th Gear
Joined: Mar 2009
Posts: 8
Likes: 0
My 2000 had a windshield leak that would allow water in around the drivers A pillar and allow water to drip on to the computer. Windows went down, radio came on, cd in and out, heater blower on and starter even engaged. All with no key. Had the windshield replaced and no problems since. Good Luck!
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Cross-Country
Joined: Nov 2006
Posts: 79
Likes: 37
From: DeKalb, IL
Sorry, SHO. Been frustrated and fighting these gremlins and forgot my manners. This is on a MY02 Excursion 6.8 Limited.
Current issues include the following:
- stereo randomly turns on and off
- windows won’t go up or down
- if the fuse is in, the vehicle thinks the keys are in the ignition
I originally started checking fuses for the AC but noticed fuse 38 was blown. I put in a replacement and went along my day. After driving it, the lights refused to turn off. When I pulled fuse 38, the lights finally went off.
The above issues persist regardless of fuse in or out.
Current issues include the following:
- stereo randomly turns on and off
- windows won’t go up or down
- if the fuse is in, the vehicle thinks the keys are in the ignition
I originally started checking fuses for the AC but noticed fuse 38 was blown. I put in a replacement and went along my day. After driving it, the lights refused to turn off. When I pulled fuse 38, the lights finally went off.
The above issues persist regardless of fuse in or out.
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