Thanks for advise I got the truck send to me this morning whish was a good thing the su unit is destroyd truck has these errors
A3902,A4002,A4207. I took these isolation tests and it,s alright got only mega ohm.I have orderd new su unit.I want to ask you is it possible to buy somewhere the service canbox,you see I worked for Still here in Iceland as a technican and trainer for 10 years until the company I work for vent down with the Banks
Now I.m freelance.I have asked the new dealer for this and they have been stalling for year now,they sometimes loan me thers.it.s geting wery diffcult to service RX series without Still diagnostic.maybe part numer would help to find on line.
regards