Hi to all i have one opel astra h 17 dtl 2006 yearthe car has been without a battery for a year when i put it in the car it did not start in diagnosis i cannot communicate with ecm and in abs and module cim gives me u2105 there is no communication with ecm i have tried another second hand ecm but it still does not respond did . Hi to all i have one opel astra h 17 dtl 2006 yearthe car has been without a battery for a year when i put it in the car it did not start in diagnosis i cannot communicate with ecm and in abs and module cim gives me u2105 there is no communication with ecm i have tried another second hand ecm but it still does not respond did . Astra h fault codes vehicle codes b0132 battery voltage low c 118 b0132 battery voltage high c 118 p0110 can bus no communication with ecm engine control module vehicle related diagnostic procedure b 019 p0115 can bus no communication with ecm engine control module . Astra h astra h fault codes the definitive list jump to latest follow 1 10 of 10 posts u2105 can bus no communication with ecm engine control module vehicle related diagnostic procedure b 019 u2106 can bus no communication with transmission control module c 003