Remote Keyless Entry (RKE) Problem
Obtain known good transmitter. Turn ignition off. Connect scan tool to Data Link Connector (DLC). Using scan tool, program transmitter. Press lock or unlock button on transmitter. If RKE responds correctly, replace and program new transmitter. If RKE is inoperative or does not operate correctly, replace RKE module and program all transmitters to be used with vehicle. Using scan tool, program all RKE transmitters to be used with vehicle.