p38a eas resync driver pack using rsw software ?

thanks for accepting me im a time served master tech now retired not the best with computors but "having a go" this is my first range rover and love it to bits 2001 p38a thor 4.6 auto hse
my dilema is
i had the dreaded 35 mph warning pop up whilst out in buckinghamshire
i suspect compressor failure found starter /compressor fuse blown tried another second hand compressor this ran with the fuse replaced but didnt appear to generate any air
got recovered home replaced the whole compressor box with a known good one
over rode the relay and it rose but only the rear
i suspected the driver pack and fitted my original
i hooked up lap top with rsw and can get the tx shows only hex and the rx shows pp repeatedly
can i resync the bcm to the driver with rsw or is there something i am missing ?

Best to post in the RR P38 sub forum.
In there you will find a trouble shooting guide , top left of the P38 page iirc.
Tech archive I think it's called.
That may help you.
And hello and welcome from me
(cos this is the introduction forum)

As far as I know there is no synching between BeCM and driver pack. Driver pack is simply a set of electronic "relays" (MOSFETS) that send power to the valve block solenoids.
I can't remember what RSW shows when a connection is made but think you just need a confirmation that transmission is occurring. Then you can read and clear codes.

Hello and welcome

Hi there and welcome
The eas ecu will still be set to the the correct height values for each corner of nothing has changed

Welcome to the forum