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Hi all -
As promised, here is a follow up to my question last week regarding the disabling of the 'shift up' light on a '98 900S Convertable.
After a bit of a ranting first post, 'Bruce' was good enough to give a long and detailed response outlining two options. The first of which was to cut the wire coming from the ECU, and the second to remove the bulb in the instrument cluster.
My first inclination was to cut the wire. Then I got in there and saw the ECU and the wiring bundle coming out of it. Now to put things in perspective, I'm in my second decade as an Systems Administrator / Network Engineer, and I've done jsut about everything you can do to a computer system. I've built a PC from spare parts all the way up to replacing memory cards in $500,000+ mainframe systems, not to mention built countless cables (ethernet, parallel, etc). But that ECU scared me. Perhaps I'm just being paranoid, but I really didn't trust myself not to screw something up by getting into that wiring bundle.
So, I went the bulb route. Bad move. Everything is back together and working, so it could have been worse, but man was that a pain in the butt to find all the screws that hold the dash on. Hint for anyone doing this, there are NINE screws. Two next to the stering wheel, two above the stering wheel, one behind the headlight switch, one behind the dimmer switch, one above the SID, and two under the radio (but you have to remove the metal liner after you take out the radio). After all that, the instrument cluster is held in place by 4 screws. Unfortunately, the instrument cluster is a sealed unit and although it had screws to take it apart, that seemed even more adventurous than going back to the ECU. Oh yea, and when you put the dash back together, make sure you line up the air vents correctly before you start screwing things back down.
So, as of this moment I'm back where I started, only a bit wiser. In the meantime I read on my original thread that 'cbomb' has sucessfully cut the wire and all worked as planned. Based on this I will probably get back to the wire route as my plan of choice (unless someone can assure me that taking the instrument cluster apart is 'no big deal').
Thanks again for everyones help.
posted by 64.81.1...
, Thu, 21 Feb 2002 08:40:06
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