Wiring help?
Thread Starter
|
Mountain Pass
Joined: Sep 2019
Posts: 109
Likes: 8
Wiring help?
So I got in my truck this morning and when I opened the door I noticed the courtesy lights under the dash didn’t come on. My first thought was a dead battery. But I turned on the key and it fired right up. Then I noticed my radio(aftermarket) and dash clock were also not on. Headlights and dash lights all work. So I checked the fuses and they were good but I even swapped them out just to be safe. Still nothing. Won’t be able to get out there with a test light and meter until tomorrow but thought I would ask y’all where I should start or if y’all know what could cause just these to all go out at one time. As always thanks In advance, y’all are always so helpful.
FTE Legend
Joined: Nov 2015
Posts: 30,935
Likes: 4,123
From: Angier, NC
You did not say what year & model you have but see if this will help
https://www.garysgaragemahal.com/wiring-diagrams.html
https://www.garysgaragemahal.com/1985-evtm.html
Dave ----
https://www.garysgaragemahal.com/wiring-diagrams.html
https://www.garysgaragemahal.com/1985-evtm.html
Dave ----
FTE Legend
Joined: Nov 2015
Posts: 30,935
Likes: 4,123
From: Angier, NC
I am told 85 & 86 are pretty close to each other and I think that link also has the 86 info you may be looking for.
Now what I have seen posted is a issue with the IGN switch (electrical) down low on the column.
They post that over time it does not make contact with all the points inside (wear out) and sometimes things will not work then they will then stop.
The other thing I would look at are the fuse links if 1 might be burnt out.
Keep us posted
Dave ----
Now what I have seen posted is a issue with the IGN switch (electrical) down low on the column.
They post that over time it does not make contact with all the points inside (wear out) and sometimes things will not work then they will then stop.
The other thing I would look at are the fuse links if 1 might be burnt out.
Keep us posted
Dave ----
Cargo Master
Joined: Sep 2006
Posts: 2,120
Likes: 390
From: Evansville, Indiana
I see you have already checked the fuses. I do believe that the courtesy lighting and clock are on the same fuse. In my truck, the clock is integrated into the radio. Radio itself powered from ignition switch but clock function is full time hot.
Thread Starter
|
Mountain Pass
Joined: Sep 2019
Posts: 109
Likes: 8
I am told 85 & 86 are pretty close to each other and I think that link also has the 86 info you may be looking for.
Now what I have seen posted is a issue with the IGN switch (electrical) down low on the column.
They post that over time it does not make contact with all the points inside (wear out) and sometimes things will not work then they will then stop.
The other thing I would look at are the fuse links if 1 might be burnt out.
Keep us posted
Dave ----
Now what I have seen posted is a issue with the IGN switch (electrical) down low on the column.
They post that over time it does not make contact with all the points inside (wear out) and sometimes things will not work then they will then stop.
The other thing I would look at are the fuse links if 1 might be burnt out.
Keep us posted
Dave ----
FTE Legend
Joined: Nov 2015
Posts: 30,935
Likes: 4,123
From: Angier, NC
They are the wires on the large stud the positive battery cable is bolted to.
If you have a test light that can go through the insulation choke for power where that link connects to the main wire.
If good you should get power there if not keep moving back to the stud checking for power as it may have a bad connection where it blots.
Dave ----
Trending Topics
Moderator
Joined: Jan 2001
Posts: 56,992
Likes: 2,741
From: Virginia
If it was the ignition switch I believe he would notice other things not working also. Like the windshield wipers and the fuel gauge.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread Starter
|
Mountain Pass
Joined: Sep 2019
Posts: 109
Likes: 8
****Solution****
So turns out the wire that feeds power to the under hood light had a bare spot and was contacting metal. So once I found that and got it fixed I replaced all fuses again and everything works now. Thank you all for the help and advice.
So turns out the wire that feeds power to the under hood light had a bare spot and was contacting metal. So once I found that and got it fixed I replaced all fuses again and everything works now. Thank you all for the help and advice.
Thread
Thread Starter
Forum
Replies
Last Post
Old7.3
1987 - 1996 F150 & Larger F-Series Trucks
1
Apr 16, 2016 08:34 AM
oafboy182
1967 - 1972 F-100 & Larger F-Series Trucks
8
Feb 26, 2015 06:13 PM