Bob2.0

As I dig into my Heater Core and unrelated wiring issue, other issues crop up. In attempting to move a wire harness, I removed the relays from the Relay Module. I thought they were all the same, but it turns out that one of them has a slightly different marking. They have an identical schematic printed on them, with identical voltage markings. The only thing different is that three of them say, 01X8, but one is 05X8.
Does anyone know which one goes where?
Also, you'll note that there is a melted spot on the connector they go on. None of the relays show any indication of excessive heat. Either this Courtesy Lamp or Fuel Pump, judging from the diagram, and both of those worked.
Any thoughts?

WVZR-1

Post the #'s of them and I believe I can ID them from the part #'s for you. They should be 8 digit #'s.

I'm quite sure I can match them to the image on 8C-30 in the FSM.

Bob2.0

Here are the photos I intended to send with the first post.
The info on all of the relays is the same except for the last one in the picture.
ZETTLER
AZ988-1CT-12DC1R
20A 12VDC
10A 12VDC

Then three of them are marked at the bottom as 01X8 but the last one in the picture is 05X8.

Any help you can give would be appreciated.... a LOT!

WVZR-1

I was expecting maybe OE/GM #'s but I did some quick checks in the SPO catalog and they actually call for the same service part # for them. I'm going to do one last check BUT I believe what you're mentioning is the "date code" used by ZETTLER and they're all the same. The ZETTLER number (line 2) is still an active number for them I believe so just use them where ever you wish.

It's difficult to try and coordinate the relay box to the FSM but something shouldn't work. Install what you can and see what doesn't work.

Does the cover ID them as to A through F? Wire colors to the socket that's damaged?

I removed some of my comments and I believe the sockets are ID'd in your snapshot and I say the burnt/damaged is actually the "fuel pump". It should be ID's as B on the socket someplace. I believe. E - would be courtesy and I believe I see both E and F in your snapshot. Use the diagrams in 8A for confirmation.

antfarmer2

I do not like the look of the plug.

WVZR-1

Relay sockets I believe are like this bottom right A - HORN, middle right B - FUEL PUMP (damaged), top right C - EMPTY (LT5), top left D - FOG, middle left E - COURTESY, bottom left F - terminals but no application that I can convince myself of.

Bob2.0

I looked online at the usual places for this plug and didn't find anything new, rebuilt or used. What I'll probably do though is rewire the connections to the unused Relay outlet for the LT5. (C) I may just leave the lower trim panel, knee bolster off for awhile so I can keep an eye on things.

antfarmer2

seem to remember a guy that scraps vettes in N.C. maybe someone will know.

Bob2.0

Good thought. That reminds me of a guy in Bowling Green, KY, (Roger Carter from Carter's Glass) who has a graveyard of C4s. He's not easy to get ahold of but I'll try him on Monday.