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3) turn the ignition key to the off position. then turn theignition key to the ON position again. within 3 seconds press theLOCK button on the remote. then turn the ignition key OFF. 4) repeat that procedure 2 more times. on the 4th cycle you shouldhear the transmitter operate the door locks. and the doors shouldlock.
1999 Civic. Note: Entering programming mode erases all remotes that were programmed. You must reprogram all remotes you want to work once you have entered the programming mode.