Transmissions fail all the time, especially when they hang an unreliable, complicated, unnecessary computer onto something that never needed a computer before. There could be a broken wire, corroded splice, corroded terminal in an electrical connector, broken shaft that runs the fluid pump, leaking seal, ...
The point is there's lots of things that can cause a sudden failure. Many of those are relatively easy to diagnose when there's a computer in the system because it monitors a lot of operating conditions and will memorize diagnostic fault codes that will tell the mechanic which circuit or system needs further diagnosis.
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Sunday, May 19th, 2013 AT 11:19 AM