Neither Transmitter Operates & Power Door Locks Okay
WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 1990 Pontiac Bonneville, 1990 Oldsmobile Toronado, 1990 Oldsmobile Ninety-Eight, 1990 Oldsmobile Eighty-Eight, and 1990 Cadillac Fleetwood. However, it is still accessible from the selected car via links, so may be relevant.
Check Pink wire for short to ground. See appropriate chassis wiring diagram in WIRING DIAGRAMS. Check keyless module power and grounds. See Figure and Figure . Program known good transmitter. If keyless entry module responds, replace transmitters. If module does not respond, replace keyless entry module. See PROGRAMMING PROCEDURES in this article.