Sport U0100 LOST COMMUNICATION WITH ECM

hi guys got my self a RRS 2010 3.0 tdv6 70,000 miles to go with the l322.. had it three weeks fine no problems then today just died on a roundabout lit up like Christmas tree.. managed to get home and plug it in.. and lots of fault codes u0100 lost com with ECM/PCM on all sorts of modules.. is there a common thing that causes this or any one had similar problems?

Hi John, you may get another answer from the RRS members but for an L322 I’d go straight to the battery terminals, especially as you mention being on a roundabout when it died. If they are even slightly loose or wiggling it can throw the communication out.
Good luck.
Tricky.

thanks tricky its on the RRS 2010 that it happened to... i have just thought i had it washed about an hour before it happened could it be water in the ecu cables? just strange that most modules say the same fault