9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
Hi everyone,
Just wanted to know if anyone has experienced DTC U2100 (no communication with canbus unit). There is no crank and all the lights are on. Does this mean I need a new CPU. Or is it something that could be fixed with tech2, like a reflash? It’s not the ABS module cause I’ve tested it...