I’ve been trying to reach out and share my experience. After changing battery my car first stopped locking, then when I took battery off again my car says key not found. I tried everything. But why actually worked??? Connect my car to another with jumper cables, then run SDD and replace control junction box as new. But I don’t actually physically change the module. Even though my car wouldn’t turn on and my gear shifter wouldn’t rise, I went through the process and did step by step even when it said turn car on although it didn’t turn on, I still pressed the start button and proceeded through the process. When it was over my car came alive like nothing ever happened. This is my experience. Jaguar XF 2013