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U0073 Diagnostic Trouble Code Discussion for December 2009

Control Module Communication Bus Off

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Trouble Ticket Help Requests for DTC U0073
Help Request Posted
2007 GMC Acadia SLT 3.6L Misfire VIN: 1GKER33777
U0073: Controller Area Network Bus Communication Off. Well Techs I'm looking for some info on a 07 Acadia 3.6 I have low compession on #4 cyl. 115-120 psi. and according to the tech2 it misses on #4 cyl. at idle like at a stop sign and clears up after go take off. At a idle it starts missing and the MIL light bli...
December 17, 2009
2004 Volvo S80 2.5T 2.5L No Start VIN: YV1TH5947H
U0073: control module communication bus off. ... in as no start.tried starting vehicle and starts and runs every time.i have had the vehicle at the shop several day and tried multiple times.there are dtc u0073 control module communication bus off,ecm-5200 engine speed sensor signal fault,and ecm-720a imm...
December 29, 2009