I went to a saab dealer to have my top programmed on my 97 Saab 900 and was told my ECU was bad, got another one and while looking everything over I noticed there are two elecrical boxes mounted on the emergency top release lever bracket that has a button on each box, it looks like in the normal mode the buttons are depressed and when the lever is pulled the buttons drop down. They are adjustable but the bracket was broken and the buttons were not compressed, do these boxes control power to the ECU? The mechanic said he has not worked on many saabs so I'm wondering if I bought a new ECU for nothing, I know something he did unlocked my 5th bow latches so everthing in my ECU wasn't fried (if it was) now I need to get it programmed and want to make sure I have everything right. but it won't be the same place, he even charged me 147.00 bucks for "diagnostics" that did nothing but leave my latches in the rear undone. I repaired the bracket but just need to know if the buttons could have been the problems reading the tech 2 from my ECU. Thanks
I don't think the buttons prevent the tech two from reading your ECU. However the top ECU times out and stops communicating with the tech 2, because it is designed to shut down to reduce electrical loads, in the car. IF the tech 2 fails to communicate push a window switch and try again. sometimes it takes many tries. But seldom on 97 or 98 will the top computer be bad.
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