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Home >> Acura >> 2012 >> MDX >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Keyless/Power Door Locks/Security System >> Transmitter Test/Replacement >> With HDS

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 does not work, replace the transmitter, then register the transmitter (see IMMOBILIZER KEY REGISTRATION ).
    • If the locks don't work, go to step 2.
  2. Connect the HDS to the data link connector.
  3. Select KEYLESS TRANSMITTER from the BODY ELECTRICAL SYSTEM SELECT menu, next select inspection then select INSPECTION, then KEYLESS CHECK.
  4. Follow the screen prompts to check each button operation.
    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 indicated, the transmitter is not registered to the vehicle. If necessary, register the transmitter (see IMMOBILIZER KEY REGISTRATION ).
    • If KEYLESS ENTRY TRANSMITTER CODE WAS NOT RECEIVED is indicated, go to step 5.
  5. Remove the transmitter cover (A) from the transmitter (B), and check for water damage.
    • If you find any water damage, replace the transmitter, then register the new transmitter (see IMMOBILIZER KEY REGISTRATION ).
    • If there is no water damage, go to step 6.
    Fig 1: Locating Transmitter Cover And Transmitter
    G08055273Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Replace the transmitter battery (A) with a new one, and press lock or unlock button and check the receive condition 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 7.
    Fig 2: Locating Transmitter Battery
    G08055274Courtesy of AMERICAN HONDA MOTOR CO., INC.
  7. Use a different known-good keyless transmitter assembly and repeat steps  3 and  4.
    NOTE: The keyless 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 keyless transmitter and do the immobilizer system registration (see IMMOBILIZER KEY 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 (see IMMOBILIZER KEY REGISTRATION ).
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