Step 1 Connect SKP-900 Key Programmer to a Nissan OBD connector via Main Cable, start the car with a remote and wait a few seconds for SKP900 to start.
Step 2 Select Nissan, New Structure and choose Yes to continue.
Step 3 Select Key 1 and choose Yes
Step 4 Select Immobilizer System according to the cars Immo and choose Yes.
Step 5 Wait for a few minutes until SKP900 communicates with the car.
Step 6 Select Function, System Selection then Key Adapt and choose Yes.
Step 7 Choose Yes.
Step 8 According to the instruction on screen, you should insert a new key and turn IGN on. You may see the IMMO indicator light will flash when inserting a key which cannot start engine. Select Yes.
Step 9 Close IGN switch and select Yes.
Step 10 Wait for system adapting and then open IGN switch and select Yes.
Step 11 Wait for a few minutes and the key is programmed successfully.
SKP900 program Honda CR-V key lost via immo within 2 mins
http://blog.obdii365.com/2015/06/13/skp900-program-honda-cr-v-key-lost-via-immo/
