Date: Sun, 2 May 2004 15:02:43 +0000 (UTC)
From: Joe Morris <jcmorrisnospame.org>
Subject: Re: lights turn on when car is off (?) WTF?


Paul Halliday <pjghnospamyonder.co.uk> writes: > Ferney at mferneyNOF'NSPAMnospamail.com wrote on 01/05/2004 07:15: ><snip>Lights come on when the car is off</snip> >> Has anyone heard of such a thing, or is the car just haunted? >> >> He has resorted to unhooking the terminals from the battery every time he >> parks it; this works; however, not an ideal solution. FWIW I've seen a similar problem - once - on my '97 900, in which the lights are configured (don't know if this is significant) to let me douse the headlights even if the engine is running. Getting out of the car at the office one day I closed the door and the headlights came on (fortunately, reflected in the bumper of the car in front of me; I would never have noticed them otherwise). Got back into the car, found that the headlight switch (always left in the "ON" position) had no effect. Turned the car on and off with the key and the lights went off; slamming the car door repeatedly didn't cause them to come back on, and I've not seen the problem since then. >I have an oddity on my '89 900 T8 whereby if I leave the fog light switch >depressed and the rear defrosted depressed, with the engine off and the >headlights off the headlights will flash intermittently. You may have discovered a back circuit in the design of the car's controls. Or, as mentioned in the thread, you might have a wiring/grounding problem. In the same '97 900 described above, you can turn the radio on and off by simultaneously pressing three specific buttons (um...lessee if I can remember: Dolby, tape reverse, and whatever it is that's next to them). Either there's a back circuit, or the logic in the controller chip didn't consider that possibility...or maybe it's deliberate as some type of diagnostic or maintenance function. Joe Morris

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