Firstly I do not pretend to know anything about this, and this is only my take on how cars are, if I am wrong, then I am willing to learn from someone with better understanding.. ]
I have had further thought on BMAX1613's issues, and I am sure someone here may be able to confirm or advisefurther... but if the ECU has failed (Electrical Control Unit), then though a domino effect would the wiring loom, (which is like the blood vessels of the body , taking power to all the different parts of the body, only in this case the car) fail only as a matter of course. If there is no power to send though the wiring, then its not the wiring that is at fault...its the source.
Also, the wiring in the car would have been rated for the power levels being sent though them, and fused (in the car fuse box)in caseof surges, and to protect the wiring from over heating etc...
So would the fault only be at the ECU, or the fuse box at a push?? or could the wiring loom actually fail as advised by the dealer?
Edited by: Davis_Zadian