How to reprogram the key after the ignition has been changed?

Hi,

If you are referring to the powertrain control module (brain), the new module needs to be programmed to the vehicle. You need to use a DRB scan tool to reprogram new PCM with the vehicle's original Identification Number (VIN) and original vehicle mileage. DRB is Chrysler's name for their scan tool. There are other upper-level scan tools that can do this.

If you are reprogramming the SKIM (Sentry Key Immobilizer Module), see the attachments below.

If you are referring to a different module, let me know which one it is.

Take care,

Joe

See pics below.