All Remote Control System Functions Inoperative

Check transmitter battery. See TRANSMITTER BATTERY CHECK under SYSTEM TESTS. Replace if necessary. If battery is okay, go to next step.
Enter identification code of an additional or new transmitter. See TRANSMITTER PROGRAMMING . If identification code can be entered, replace with originally used transmitter. If identification code cannot be entered, see ANTENNA CHECK under SYSTEM TESTS and ALL TRANSMITTERS INOPERATIVE under SYSTEM TESTS.