[Y2Kvert4me]

Look at this last picture and it will show you which relay control the windows and door locks.

1997 to 2000 model



2001 to 2004 model

Step 8: After pre-heating your soldering iron, use the soldering iron and solder sucker to unsolder the 5 pins from the relay you want to replace. Everything on the circuit board is coated with a plastic film, you will have to use a small knife blade, or small blade screw driver, and cut around the relay before you try to pry the relay off of the circuit board. I found the same film on the solder side of the board as well. If you scrape off some of that plastic film before you apply the soldering iron, you will have better success at unsoldering the pins.
Step 9: After the relay is replaced, re-assemble everything. Be sure to note where the wiring connectors plug back into. The plastic housing is marked for the correct color of the wiring plug.

The Digi-Key part number for the door relay is 255-1240-ND and you can find it at Digi-Key - 255-1240-ND (Manufacturer - JSM1-12V-5). Last time I looked, they had 1400 in stock.

The window relay is a Mouser Stock number is 551-EP2-3N1S, and they sell for $3.93 each plus shipping and maybe tax. Here is the link:
551-EP2-3N1S

I hope this helps you guys that have intermittent door locks or you can hear a clicking sound but the window doesn’t go up or down. From start to finish, this project took me about an hour. Heck, it took me longer to do this write up than it did fixing my door lock. But, hey, that is what Corvette Forum buddies are for.

Hope that helps...