How to preserve own keys

Some Ford vehicles require a transponder key to start the vehicle. Without the chip in the key, the car will not start. Follow these steps to program your own ELM327 WIFI for just a few dollars.

1
First of all this only works with Ford or Mazda cars and trucks. There is a different procedure for other makes and models. You will first need to purchase a transponder chip key. A local locksmith may also be able to provide you with one. The last resort should be the dealership, they will charge you an arm and a leg.

2
Next you will need to have the Ford KM Tool like the original. Ask a local locksmith to do this. Their charges will be minimal. Probably less than $10.

3
Now its time to program the new key. First you will need both of the programmed keys that came with the vehicle. If you do not have both, you will not be able to program the key yourself. You will need to go to the dealer to have it done.
After obd2 tool light on the dash goes out, remove the key. Put the next already programmed key into the ignition and turn the key to RUN, but do not start the engine. Wait until the light on the dash goes out. Remove the key.

4
Take the new key and put it into the ignition. Turn the key to RUN but do not start the vehicle. Wait until the security light goes out on the dash. Then remove the key. The new key should now be programmed.