Keyless Entry Transmitter Test: Test

1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
2. Turn the ignition switch to ON (II).
3. Make sure the HDS communicates with the vehicle. If it does not communicate, go to the DLC circuit troubleshooting.
   Fig 1: Identifying Data Link Connector

   Courtesy of AMERICAN HONDA MOTOR CO., INC.

With HDS 

1. Press the transmitter lock or unlock button at least 10 times to reset the transmitter:
   • If the locks work, the transmitter is OK.
   • If any of the transmitter buttons do not work, replace the transmitter, then register the new transmitter.
   • If the locks don't work, go to step 2.
2. Select KEYLESS TRANSMITTER from the BODY ELECTRICAL SYSTEM SELECT menu, next select inspection then select INSPECTION, then KEYLESS CHECK.
3. Press the lock, unlock, or panic button and check the response on the screen of the HDS.
   NOTE: The door lock actuators may or may not cycle when receiving input from the transmitter:

   • If KEYLESS ENTRY TRANSMITTER CODE WAS RECEIVED is indicated, the transmitter is OK.
   • If DIFFERENT KEYLESS ENTRY TRANSMITTER CODE WAS RECEIVED is working but indicated, the transmitter is not registered to the vehicle. If necessary, register the transmitter.
   • If KEYLESS ENTRY TRANSMITTER CODE WAS NOT RECEIVED is indicated, go to step 4.
4. Open the transmitter and check for water damage:
   • If you find any water damage, replace the transmitter, then register the new transmitter.
   • If there is no water damage, go to step 5.
5. Replace the transmitter battery (A) (CR1616) with a new one, and press the lock or unlock button and check the response on the screen of the HDS:
   • If KEYLESS ENTRY TRANSMITTER CODE WAS RECEIVED is indicated, the transmitter is OK.
   • If KEYLESS ENTRY TRANSMITTER CODE WAS NOT RECEIVED is indicated, go to step 6.
6. Use a different known-good transmitter assembly and repeat steps  3 and  4.
   NOTE: The transmitter does not need to be programmed to the vehicle for this test:

   • If DIFFERENT KEYLESS ENTRY TRANSMITTER CODE WAS RECEIVED is indicated, replace the transmitter and do the immobilizer system registration.
   • If KEYLESS ENTRY TRANSMITTER CODE WAS NOT RECEIVED is indicated, the immobilizer-keyless control unit is faulty, replace it and do the immobilizer system registration.
     NOTE: The transmitter is combined with the immobilizer transponder, so when the transponder is registered by the HDS, the transmitter programming is completed automatically.
     Fig 3: Identifying Transmitter Battery (With HDS)

     Courtesy of AMERICAN HONDA MOTOR CO., INC.

Without HDS 

1. 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 do not work, go to step 2.
2. 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 3.
     Fig 4: Identifying Transmitter (Without HDS)

     Courtesy of AMERICAN HONDA MOTOR CO., INC.
3. Replace the transmitter battery (A) (CR1616) 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 do not lock and unlock, go to step 4.
4. Reprogram and register the transmitter, then try to lock and unlock the doors:
   • If the doors lock and unlock, the transmitter is OK.
   • If the doors do not lock and unlock, substitute a known-good transmitter, register it and recheck. If still not operating, replace the immobilizer-keyless control unit.
     NOTE: As the keyless transmitter is combined with the immobilizer transponder, when the transponder is registered by the HDS, the keyless transmitter is also registered automatically.
     Fig 5: Identifying Transmitter Battery (Without HDS)

     Courtesy of AMERICAN HONDA MOTOR CO., INC.