Programming Immobilizer-Keyless Control Unit

WARNING: This page is about a different car, the 2013 Honda Fit, 2012 Honda Fit, 2011 Honda Fit, 2010 Honda Fit, and 2009 Honda Fit. However, it is still accessible from the selected car via links, so may be relevant.

Have all registered keys and the ECM/PCM code.
Connect the HDS to the data link connector.
Turn the ignition switch to ON (II).
Select IMMOBI from the SYSTEM SELECT menu, then select IMMOBILIZER SETUP.
Select REPLACE IMMOBILIZER/KEYLESS CONTROL UNIT REPLACE.
Do the registration according to the instructions on the HDS screen.
Check that the engine can be started with all registered keys.
When prompted by the HDS, do the keyless transmitter programming.