Land Rover Repair: shift motor/encoder motor, t4 test, einfo

Question
how do i install a shift motor /encoder motor in a 2003 range rover ?

Answer
The simple explanation is:  You unbolt the motor from the rear of the transfer case, wriggle it out, and fit the new one.  For a real step-by-step with illustrations, I suggest www.landrovertechinfo.com - Land Rover's official site.

Here in the US, a day's access would cost under $20, and you'd have access to every single piece of servic einfo for your truck.

I am a little concerned that you won't be able to test the motor or its control circuit without the T4 test system. Consequently, you may be barking up the wrong tree in terms of what's actually wrong.  

But if you want to proceed, that's the way to do it.