Electrical: 1985 Avanti wiring diagram? no back up lights??

[dynolou2]

After much searching I'm still looking for a wiring diagram. This has the gm computer set up and wiring harness and fuse block. This car has the 5 speed in it, and I'm trying to find out why the backup lights don't work. So far: I've found no power to back up light in trans., switch should be hot with key on. Traced wires [ one blue, one green] to a bulkhead connector to the right of the distributor. The fuse block isn't marked as to what fuse is for what item, pulled all fuses and found none blown. Your help with this is appreciated!!! Lou Cote RQB 4240

[StudeRich]

AVANTI II or III?

Have you noticed Lou, that when you go from "Studebaker" to "Studebaker related", the help diminishes real fast!

Nobody is being rude, we just don't KNOW!
You may have to contact Jon and Mike Myer or Nostalgic Avanti who deal with lots of these.

[Jackson]

I will take a look at my 85 Avanti in the near future, right now it is not stored in a location that is convenient.

[dynolou2]

After talking to Nostalgic, I have found that tha harnesses for the 83 to 85 were custom made but used common GM plug in componets. Some of the sensors MAP knock,altitude etc; are GM. So finding a map of the fuse block is out. I suppose that you could make one, but what is the fun of laying scrunched up pulling all the fuses to find the blown one. Rich, we as a world wide community need to share our knowledge, as many of the new members never had the priviledge of owning, driving, or riding in a Studebaker product. Educating them will benefit all of us, and help you sell more parts!!! Lou Cote RQB 4240

[karterfred88]

Okay, first do you know which 5 speed you have? If its a Borg Warner T5 then the back up light switch is integrated into shifter housing, looks like a master cylinder brake switch with a two wire plug. I'd start with replacing that and routing a new hot lead to the switched side of the fuse box. The wires to the switch swing back and forth everytime the engine moves and finding where you lost continuity will be a pain. The switch is real cheap http://www.jeep4x4center.com/product...number=8134068 and it pays to start with one known good part. If they don't go on after that, run a new wire to the lamps. I know CASO fix, but I hate tracing non working wires wrapped in tape.

[Gunslinger]

After talking to Nostalgic, I have found that tha harnesses for the 83 to 85 were custom made but used common GM plug in componets. Some of the sensors MAP knock,altitude etc; are GM. So finding a map of the fuse block is out. I suppose that you could make one, but what is the fun of laying scrunched up pulling all the fuses to find the blown one. Rich, we as a world wide community need to share our knowledge, as many of the new members never had the priviledge of owning, driving, or riding in a Studebaker product. Educating them will benefit all of us, and help you sell more parts!!! Lou Cote RQB 4240

If you have the old style glass tube fuses, you don't need to pull them to find a bad one. Use a test light...touch it to both ends of the fuse and see if current is flowing through. If the light illuminates on one end and not the other, you have a bad fuse.

[dynolou2]

A further up date it was a switch problem,i got a new switch today. A good part # Standard LS 205 about $ 20.00. Gunslinger, my 85 has the rectangular plastic case fuses. Another thing that I tried in testing was to power up both wires in backup light circuit using a bed of nails style probe from battery. Powering up blue wire brought on lights, powering up green turned on ign. computer, and feedback carb. As inspector Clouseau would say "problem is solved" Lou Cote RQB 4240