This is the second of the niggling problems on my 9000 CSE 2.3 turbo. I can't get the interior lights to switch off when I've switched off the ignition and locked the car. As a result I don't use the interior lights at all. Any suggestions please?
I assume you have the interior light switch in the correct position in which case I would suspect one of the door switches or the interior light delay relay which may have failed in the on position. I think that relay is above the fuses. Remove glove box, drop fuse board down and there are the relays.
Stand or sit John, there is a relay on both the classic 900 and 9000 interior light delay circuit. Well there is for the Saab instalation, obviously inferior aftermarket devices fitted later may be cylindrical units containing a capacitor!!
Well, I'm in the 9000 forum speaking only with experiences of the 900 - so it is quite possible you get a proper relay on the 9000. (The 900 was 1991 model year but these things were being used back on the 99 aswell!)
Yes there is a time-delay relay. The door switches have 2 contacts, one which operates the door lights, the other which triggers the relay. The interior light should come on for 15 seconds or until the ignition is switched on, which ever comes first. The switch on the interior light however has 3 positions - On via the relay, Off, and permanently On.
If it is not a case of the switch being in the wrong position, either the switch is duff or the relay is duff.