Diagnostic Aids
WARNING: This page is about a different car, the 1993 Buick Roadmaster. However, it is still accessible from the selected car via links, so may be relevant.
Program a known good transmitter and test driver's door lock and unlock functions. If driver's door lock and unlock functions operate normally, original transmitter was defective. If driver's door lock and unlock functions are still inoperative, replace keyless entry receiver.
NOTE:
Test numbers refer to numbers on diagnostic chart.