Check connection under steering column to key lock cylinder
Prove wiring is good from key lock cylinder to connector under steering column (use a meter)
The TDR can sometimes be at fault. It is located to the right of the glove box, next to the hatch relay. It is pinned to the metal structure of the dashboard. It is easiest to see if you poke your head under the dashboard and look back toward the rear (after removing the lower dash panel).