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U0073 Diagnostic Trouble Code Discussion for October 2011

Control Module Communication Bus Off


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Trouble Ticket Help Requests for DTC U0073
Help Request Posted
2006 Ford Fusion SE 3.0L MIL Lamp on VIN: 3FAHP07186
U0073: Chip malfunction can bus fault. This Fusion came from another shop, the engine runs fine, no misfires, etc, after warming up, upon acceleration the trac light will appear, the wrench symbol appears, the trans goes into limp home mode, the check engine light comes on, and if you continue to d...
October 07, 2011
2006 Pontiac G6 2.4L Surge, Stall, Power reduced VIN: 1G2Z1555B2
U0073: Controller Area Network Bus Communication. hello this G6 will intermentaly cut go into tranny limp mode and the IPC will flash gauges will drop and error will read on the odomoter i havent had much time to look at there was a list of codes that where in it and those codes were in the pcm only. I do kno...
October 19, 2011
2006 Pontiac G6 2.4L Surge, Stall, Power reduced VIN: 1G2Z1555B2
U0073: Controller Area Network Bus Communication. hello this G6 will intermentaly cut go into tranny limp mode and the IPC will flash gauges will drop and error will read on the odomoter i havent had much time to look at there was a list of codes that where in it and those codes were in the pcm only. I do kno...
October 25, 2011
2009 Cadillac CTS Premium 3.6L U0073 Fail safe VIN: 1G6DR57VX9
U0073: High speed Can off. ... they have around 10-15 of them with the same fault, they imported around 120 of them new but because they are a GM Holden dealer and not Cadillac they do not have a Cadillac “dealer number" so GM won't support them to help find the issue, so they have ...
October 30, 2011
2006 Ford Fusion SE 3.0L MIL Lamp on VIN: 3FAHP07186
U0073: Chip malfunction can bus fault. This Fusion came from another shop, the engine runs fine, no misfires, etc, after warming up, upon acceleration the trac light will appear, the wrench symbol appears, the trans goes into limp home mode, the check engine light comes on, and if you continue to d...
October 07, 2011
2006 Pontiac G6 2.4L Surge, Stall, Power reduced VIN: 1G2Z1555B2
U0073: Controller Area Network Bus Communication. hello this G6 will intermentaly cut go into tranny limp mode and the IPC will flash gauges will drop and error will read on the odomoter i havent had much time to look at there was a list of codes that where in it and those codes were in the pcm only. I do kno...
October 19, 2011
2006 Pontiac G6 2.4L Surge, Stall, Power reduced VIN: 1G2Z1555B2
U0073: Controller Area Network Bus Communication. hello this G6 will intermentaly cut go into tranny limp mode and the IPC will flash gauges will drop and error will read on the odomoter i havent had much time to look at there was a list of codes that where in it and those codes were in the pcm only. I do kno...
October 25, 2011
2009 Cadillac CTS Premium 3.6L U0073 Fail safe VIN: 1G6DR57VX9
U0073: High speed Can off. ... they have around 10-15 of them with the same fault, they imported around 120 of them new but because they are a GM Holden dealer and not Cadillac they do not have a Cadillac “dealer number" so GM won’t support them to help find the issue, so they have ...
October 30, 2011