hi.

Girlfriend's son recently bought 2003(2?) X-type. Drove it home and soon after got the "Trans Failure" display, stuck in "P", and no start.
He's checked grounds, swapped TCM, finally got it to a shop that declared bad grounding "coming out of the ECM".

He's being told the ECM "cannot" be changed because it's coded to the VIN. At worse I figure the VIN would need to be configured into the swap ECM. (and yes, I know this can still be a pretty ugly "at worse")

Can anyone confirm or offer ideas on swapping the ECM?

Thanks,
Lowell
2000 XJ8 VDP (almost 2 weeks now)
1988 XJ6 (the "gateway" Jag)
1986 XJS (micro switch for kickdown was bad, no 1st to 2nd until 90mph)