Car brought to workshop running ok,fitted new radiator bottle,went to start car no lights on dash,no cranking,put boost pack on cranked fine no start,put scanners on no communications to engine ecu all the others abs,immoboliser etc are fine. Check fuses all ok ,lives & earths ok,ecu lives & grounds ok,engine management relay all working ok, but no can lo signal only can hi. Left vehicle for a couple of days pushed into back of workshop,disconnect battery to give it a good charge put back on now have good can hi & lo from ECU pins,but not at the DL 16 put breakout box on for can pins 6 & 14 tested ohms over 2 k ohms should be only 60 ohms i believe,possible wiring fault or ECU help?