Without HDS

Start the engine.
- If the engine does not start, go to the immobilizer system troubleshooting (see ENGINE DOES NOT START WITH THE IMMOBILIZER KEY ).
- If the engine starts go to step 2.
Press the transmitter lock or unlock button at least 10 times to reset the transmitter.
- If the locks work, the transmitter is OK.
- If the locks don't work, go to step 3.
Open the transmitter, and check for water damage.
- If you find any water damage, replace the transmitter and register the new transmitter.
- If there is no water damage, go to step 4.
  
  Fig 1: Identifying Transmitter With Key
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
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 at least 10 times.
- If the doors lock and unlock, the transmitter is OK.
- If the doors don't lock and unlock, go to step 5.
  
  Fig 2: Identifying Transmitter Battery
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
Reprogram and register the transmitter (see IMMOBILIZER KEY REGISTRATION ), then try to lock and unlock the doors.
- If the doors lock and unlock, the transmitter is OK.
- If the doors don't lock and unlock, substitute a known-good transmitter, and recheck. If the doors still do not lock and unlock, replace the immobilizer-keyless control unit.