No Lights at all

[coyote_hunter]

Guys I've searched on here with no luck. I just bought my 1st m1008. When I bought it the lights worked. Yesterday I put a radio in it, and now I don't have any lights at all. I don't see how the radio could be the problem, I just ran a wire to a blank bat slot and a wire to a blank acc spot in the fuse box. I've found that I don't have any power to the fuse box on the terminals for the lights. I also don't have any power coming in or out of the service light switch. I do have power in the fuse box to other terminals. Any thoughts on where I should go for here?

Thanks in advance

 

[original]

Let's play trace that wire. I had a similiar probem with the wires to my heater blower motor. No power at the fuse box. I had to trace the wire all the way back. I found a severly corroded connection. Replaced the connection - everything worked fine. These trucks are old and many of them have set for long periods. Corrosion takes over the electrical connections in a short time. I would suggest tracing the wire and cleaning all connections. Do a search for a wire diagram. I'm sure I've seen a few in the forums.

 

[coyote_hunter]

Thanks

 

[Brutusdog]

black out light switches

Sometimes the blackout switches act up.

 

[A12ozProphet]

I had a similar problem and it seemed to fix itself when I separated and re-connected the inside part of the fuse box with outside part. Re-seating all the terminals inside.

PS I've inadvertently hit my Black-out switch which "at least the first couple times" caused a second or two of panic.

Good luck!
Kent.

 

[CARNAC]

I bet the instrument panel plastic pushed your blackout light switch down. Happens to me on all those few times I get to work on my truck. First time I did it, I thought I had jacked something up only to find out the switch had gotten hit.

Let us know if this is it.....so we can make fun of you.

 

[coyote_hunter]

Well I took the fuse box off last night and couldn't see anything wrong with it. If I jump power to the light terminal in the fuse box it works. I had power coming from all of the red wires that run into the wiring harness. Does anyone know what wire powers the light terminal? I had 2 orange wires running out of the back side of that terminal.

No the blackout switch in the correct position and the service light switch was on.

 

[coyote_hunter]

For now I jumped terminal Z from one of the terminals that wasn't being used. Everything worked except my brake lights. The blinkers worked for a while, but when I took it out for a drive they quit working. This wiring crap it giving me a headache................

 

[Warthog]

So are you saying the wiring is crap or your understanding of the eletrical system is crap?


Disconnect your batteries and remove and clean all the fuses and fuse holders. Sometimes you also have to separate the fuse box and clean the internal connectors. This was talked about in an earlier post.

You must understand that these trucks are 25+ years old and where used in very harsh emvironments. The electrical connectors are prone to dirt and corosion.

Not picking on you, but if you are not prepaired to do the maintenance then I would suggest you by a different vehicle.

Also have you downloaded all the technical manuals for the truck? The have an excellent troubleshooting section and all the wiring diagrams are in the appendix.

 

[Brent.Cain]

need help on my CUCV M1031/ M1008 search for this it will show you how i fixed my problem

 

[edgebar]

had the same problem. on the main fuse for the lights ( see tech manual for correct location) the socket was slightly burned, the military had wired in a new clip connector for the socket, but it was not actually molded into the plastic housing any longer so it came loose and the fuse was in the socket, but not conncted to both wires. check to be sure that than main light fuse socket is in working order. ended up being a 30second fix to a 2 week long nightly search for the problem...ggg