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Date: Wed, 19 Jan 2000 15:04:28 GMT
From: wwwnopsamus-technologies.com (Dean Malandris)
Subject: Re: Where the hell is the wiring splice located for the rear brake lights on a 90M 900T Cab??


On Wed, 19 Jan 2000 10:28:36 GMT, just as I was about to see how much duct tape you REALLY need to stop a gerbil from exploding, malcolm532nopsameja.com distracted me by babbling thusly: ><Snip> >Not exactly sure about soft-top saabs but I doubt if things are that >different. I had a similar problem with my 1991 3-door and traced the >problem to joints in the wiring under - your right - the rear seat! Lo and behold. That's where I'd put a splice because it seems to be a logical place, but then, I'd never put a splice in a wiring loom anyway. I have a real pet hate about this. Connectors you can see and locate. They're mentioned in the schematics. They have NAMES. But splices? Geez, in a premium-price vehicle (these things sold for $85,000 new here in Australia) you'd think an extra $80-$100 in connectors wouldn't bust their accountant's balls. I know connectors fail. I see it all the time. But at least I can see where the wiring gets tapped off. And like you say, a joint at a splice can go high-res and fall over anyway. I had this same problem a few months after I bought the car, with the dashboard lights. The voltage one day magically vanished for the cigarette lighter and I think, the temperature dial or fan speed dial (forget now but it was two or three bulbs all up) backlight bulbs. I thought this was rather silly as the bulbs right next door were still being supplied with current. Looking at the schematic revealed that yes, these two or three were indeed on a separate circuit, and it terminated at a splice. So I figure, how hard can this be? After removing the lower dash pad and tracing the wiring from the dud bulb holders, I could see about 150mm of visible and traceable wiring before it disappeared into the jungle. Shit. Rather than take the entire car apart I just said "stuff it" and soldered a new wire into the relevant pin of the connector in the firewall and ran it to the defunct local circuit to restore it. It works, of course, but it doesn't appeal to my sense of aesthetics having a length of dead copper still in there, and my new run of course is just a "tack on" loosely running along a totally separate physical path along the underside of the dash. Sure you can't see it once you bolt it all back together, but *I* know it's there. I don't design all my products with milspec connectors of course, and I'm not suggesting SAAB raids the Viggen (the real one, not the one with wheels) parts bin and fit out all their cars with stuff from the latest fighter planes, but really guys, just a wee bit more planning in the way you laid out your wiring looms would have made it SO much easier for those of us that have to deal with the consequences several years later. Run the wire to the brake light cluster, then another from the pin on that, to the centre cluster, make it red or blue with yellow polka dots, and I'm a happy bunny. I believe this is what they did up to '89 anyway. Why the hell did they change it on my car, I don't know. Probably makes it more moose-proof. -- Our OS who art in CPU, UNIX be thy name. Thy programs run, thy syscalls done, In kernel as it is in user! ---------------------------------------------------------------------------- Plexus Technologies Pty. Limited. Electronics Consulting, Research & Development. http://www.plexus-technologies.com Mobile: +61 (0)411 470 880 ICQ: 719010

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