Does my Suzuki Ignis 2003 need a diagnostic check to fix an ignition lock issue?

If you’ve fitted a new ignition barrel, you’ll also have a new ignition key to go with it. And, according to Suzuki, that key needs to be electronically coded to the car before anything will work. You can take the car to a Suzuki dealer to have this done, or you might be able to find a local locksmith, some of whom can perform this task. But you’ll need to check first.

If your car is the base-model GA version without remote central locking, the other issue is that you’ll then have two keys to operate the car; one for the ignition and another to operate the door locks. The smart thing to do would be to have your dealership or a locksmith recut the door-lock barrels to suit the new key and have the whole car operate form a single key…much more convenient.