1988 satellite T-3000

[dgm]

Looking for a wiring diagram for 12v interior lighting. Any help most appreciated. Thanks

[JohnB]

Hi, and welcome!

We really do not have a wiring diagram for a camper that old, we actually only have one wiring diagram and it is for a a 2004 T-2499 that I obtained from Sunline when they were still in business. The newer campers have more circuits as they are longer and it can make sense to have 2 lighting circuits rather then a small camper on only one.

But, we may still be able to help. Not exactly sure what your exact power converter looks like, I have seen several from that time period, assuming no one has change it from the original.

Sunline traditionally wired all the ceiling lights in a daisy chain fashion. Meaning they were wired in parallel and they brought both a black hot wire and white ground (DC neg) to each fixture. And, since they in the daisy chain fashion, jumping from fixture to fixture, if a connection in either the hot wire or the ground is broken or corroded, all the lights down stream stop working.

If yours do not work at all, start at the fuse panel for power. And ground. A bad rusted ground wire can be as bad as not hot wire. Odds are they went to the first light closet to the fuse, then started jumping to the next and next.

You may end up taking each fixture down from the ceiling and see where power is or stops. Doing a temporary hot wire injection or ground wire into the circuit and if some light, it helps tell you part of the system at least works, then back into the rest

Hope this helps

John’s

[dgm]

Thanks very much, John. My electrician figured it out. Everything works as it should.