Civic L4-1668cc 1.7L SOHC MFI (2003)
Keyless Entry Transmitter: Testing and Inspection
Transmitter Test
NOTE:
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If the doors unlock or lock with the transmitter, but the LED on the transmitter does not come on, the LED is faulty; replace the transmitter.
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If any door is open, you cannot lock the door with the transmitter.
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If you unlocked the doors with the transmitter, but do not open any of the doors within 30 seconds, the doors relock automatically.
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The doors do not lock or unlock with the transmitter if the ignition key is inserted in the ignition switch.
1. Press the lock or unlock button 5 or 6 times to reset the transmitter.
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If the locks work, the transmitter is OK.
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If the locks don't work, go to step 2.
2. Open the transmitter and check for water damage.
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If you find any water damage, replace the transmitter.
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If there is no water damage, go to step 3.
3. Replace the transmitter battery (A) with a new one, and try to lock and unlock the doors with the transmitter by pressing the lock or unlock button
5 or 6 times.
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If the doors lock and unlock, the transmitter is OK.
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If the doors don't lock and unlock, go to step 4.
4. Reprogram the transmitter, then try to lock and unlock the doors.
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If the doors lock and unlock, the transmitter is OK.
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If the doors don't lock and unlock, replace the transmitter.