I am trying to find a wiring gremlin in the tail lights on my 73 fj40. I don't have a FSM or the cash to get one this week. Is there a diagram on here that will tell me what wire is what at the tail lights? They work sometimes and then they don't. The fuse gets really hot so there must be a short in it somewhere but i need to isolate the wires so I can pin point the problem. Any help is much appreciated.
73 40 wiring
- Thread starter winkle
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
schematics
Coolerman's Electrical Schematics and FSM File Retrieval
coolerman has a 71 schematic and some later model stuff on his site, pick the files marked cleaned cause they are readable
Coolerman's Electrical Schematics and FSM File Retrieval
coolerman has a 71 schematic and some later model stuff on his site, pick the files marked cleaned cause they are readable
Coolerman
SILVER Star
- Joined
- Jan 5, 2004
- Threads
- 143
- Messages
- 6,766
- Location
- Paint Lick, KY
- Website
- www.globalsoftware-inc.com
Start by removing the fuse box from under the dash.
Clean each wire attached to the sides with a good general cleaner so you can see what color they are. Take a digital picture of the whole thing so you can document where each wire goes.
Remove all the wires and take the fuse panel to the work bench.
Remove all the fuses noting where they go.
Use a Dremel tool with a wire wheel to remove all the corrosion from every metal surface, paying particular attention to the fuse clips. Also do the ends of the fuses.
Do the same thing to both sides of the ring terminals crimped to each wire that was attached to the fuse panel.
Re-insert the fuses, re-attach the wires, bolt it back to the firewall.
Next clean all of your battery cables, battery terminals and grounds.
THEN start trying each electrical device to see what is not working. We can help you troubleshoot...
Clean each wire attached to the sides with a good general cleaner so you can see what color they are. Take a digital picture of the whole thing so you can document where each wire goes.
Remove all the wires and take the fuse panel to the work bench.
Remove all the fuses noting where they go.
Use a Dremel tool with a wire wheel to remove all the corrosion from every metal surface, paying particular attention to the fuse clips. Also do the ends of the fuses.
Do the same thing to both sides of the ring terminals crimped to each wire that was attached to the fuse panel.
Re-insert the fuses, re-attach the wires, bolt it back to the firewall.
Next clean all of your battery cables, battery terminals and grounds.
THEN start trying each electrical device to see what is not working. We can help you troubleshoot...
My 73 did this for a few weeks and I decided to check the tail light itself. When I removed the bulb the whole damned assembly fell apart in my hand due to corrosion. I replaced the assembly and am back in business.
Sorry this is of the subject,Start by removing the fuse box from under the dash.
Clean each wire attached to the sides with a good general cleaner so you can see what color they are. Take a digital picture of the whole thing so you can document where each wire goes.
Remove all the wires and take the fuse panel to the work bench.
Remove all the fuses noting where they go.
Use a Dremel tool with a wire wheel to remove all the corrosion from every metal surface, paying particular attention to the fuse clips. Also do the ends of the fuses.
Do the same thing to both sides of the ring terminals crimped to each wire that was attached to the fuse panel.
Re-insert the fuses, re-attach the wires, bolt it back to the firewall.
Next clean all of your battery cables, battery terminals and grounds.
THEN start trying each electrical device to see what is not working. We can help you troubleshoot...
Coolerman have you go my PM?
I want to send you the diagrams, I have them all on a cd.
Vic
If you have LED taillights installed, there is a chance , someone might have solved a flashing problem by using load reristors which might be the reason for your fuse getting hot.
This is a cheap solution, while the better solution would have been to change the flasher to electronic one.
Just a thought.
