on March 23, 2011, 9:23 pm, in reply to "Vauxhall Corsa 1.0 X10XEP 2004 - Flashing "F" and non start, multiple codes #"
I am coming round to the idea that this is some sort of can bus comms problem.
One of the downsides of being a Mobile is that this sort of problem is difficult to "manage". In a workshop you would have the thing parked to one side and might try something every hour or so as ideas (Or suggestions ) occur, I can only see it once a day (If that).
My next Plan is to try to probe various connectors and see if there is CAN continuity IYSWIM and see where that takes me. As an aside, the battery has run down. This happened a week before the problems arose, wether this is a "Symptom" or just a dead battery I do not know as yet (On charge overnight but my feeling is that this might be a symptom since the battery was severly discharged (OCV 4.5) and yet it accepted charge, erm, vigourously (the 12 Amp limit on my bench charger)!)
Although the transmission ECU ID data seems scrambled, live data does suggest that not only can I actually communicate with the trannie ECU but that also I can see data that the trannie ECU can see directly (And I can see interesting stuff, such as whether or not the drivers door is open and when I have the ignition key in "Crank" position or not...). But it cannot see stuff that should be sent from the engine ECU. IYSWIM
I have had no previous experiance of CAN BUS problems so am hunting in the dark somewhat. (And the added difficulty in that I hate "wiring" problems owing to being colour blind! )
If ther are any Silver Bulllets going on Corsa CAN faults I would love to know...
PAul
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