Hi, have you managed to resolve your problem, I had a similar problem whereby my battery was loosing power and I had a steering column lock message displayed on my cluster, tried all diagnosing machines but failed, the only thing I did was a simple and stress frees process, I bought a jaguar with a broken gearbox for around P6000.00($400) it was starting but not moving, I then remove the computer box, cluster, front and rear module, key fob and fitted everything in my jaguar, all was good, you should try it and less stress for you