September 30: LEMON manuals is back up on a temporary server! Slowness is possible
Section 11 (Anti-Theft System): Wiring Diagram
WARNING: This page is about a different car, the 1994 Chevrolet Caprice and 1994 Buick Roadmaster. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Anti-Theft System (PASS-Key (R)) Wiring Diagram