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Home >> Acura >> 2003 >> MDX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 97 (Immobilizer System) >> Immobilizer-keyless Control Unit Replacement
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Immobilizer-keyless Control Unit Replacement

WARNING: This page is about a different car, the 2009 Acura MDX, 2008 Acura MDX, and 2007 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: All registered keys are necessary for replacement of the immobilizer-keyless control unit.
  1. Remove the driver's dashboard lower cover (see DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION ).
  2. Remove the steering column covers (see COLUMN COVER REMOVAL/INSTALLATION ).
  3. Disconnect the 7P connector (A) from the immobilizer-keyless control unit (B).
    Fig 1: Identifying 7P Connector And Immobilizer-Keyless Control Unit
    G05488223Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Remove the two screws and the immobilizer-keyless control unit from the ignition key cylinder.
  5. Install the immobilizer-keyless control unit in the reverse order of removal.
  6. After replacement, turn the ignition switch ON (II).
  7. Connect the HDS to the data link connector.
  8. Select "IMMOBI" from the "System Select" menu.
  9. Select "Immobilizer Setup" from the "Mode Menu".
  10. Select "Replace Imm Unit".
  11. Operate according to instructions of a screen of HDS.
  12. After HDS operation, check the immobilizer system.
  13. Verify the operation of every key and remote transmitter.
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