This EasyKeyMaker Honda Key Programmer worked 100% for my 2011 Honda CR-Z

1. Make sure the switch on the “Easy Key Maker” is towards the LED light.
2. Place your original/working key in the ignition and turn it ON (position II). DO NOT START VEHICLE
3. Plug the “Easy Key Maker” into the OBD socket and LISTEN for 1 BEEP repeating.
4. Turn the key OFF and LISTEN for 3 BEEPS repeating.
5. Turn the key ON and the beeping will pause for 10 seconds. LISTEN for 1 LONG BEEP followed by 1 BEEP repeating.
6. Turn the key OFF and LISTEN for 3 FAST BEEPS followed by 2 BEEPS repeating.
*** THIS KEY IS NOW SAVED IN THE “EASY KEY MAKER” ***
7. Remove this key from the ignition and place in the key you want to program while the 2 BEEPS continue.
8. Turn the key ON and LISTEN for 1 BEEP repeating.
9. Turn the key OFF and LISTEN for 2 BEEPS repeating.
10. Turn the key ON and LISTEN for 1 BEEP repeating for 20 seconds followed by 1 LONG BEEP.
*** THIS KEY IS NOW PROGRAMMED ***
11. Turn the key OFF then unplug the “Easy Key Maker”.

It is cheap, only 37.50usd:

https://www.obd2tool.com/goods-10031-Honda+Key+Programmer.html

Note: This does not program the remote door lock on the key. That is programmed by an additional process that does not require any tools. To do that you’ll repeat a maneuver 4 times:
1. Place your new key in the ignition. DO NOT START THE VEHICLE
2. Turn the key ON (position II) and wait for about 3 seconds then PRESS the key’s LOCK BUTTON.
3. Turn the key OFF and wait for about 3 seconds.
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4. Turn the key ON and wait for about 3 seconds then PRESS the key’s LOCK BUTTON.
5. Turn the key OFF and wait for about 3 seconds.
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6. Turn the key ON and wait for about 3 seconds then PRESS the key’s LOCK BUTTON.
7. Turn the key OFF and wait for about 3 seconds.
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8. Turn the key ON and wait for about 3 seconds then PRESS the key’s LOCK BUTTON and you’ll hear/see the doors locking.
*** THIS KEY’S REMOTE IS NOW PROGRAMMED ***