Interior light

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Thread: Interior light

  1. #1

    Interior light

    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?

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  3. #2
    Motor Mouth
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    Re: Interior light

    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.

  4. #3
    Full throttle john's Avatar
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    Re: Interior light

    Finlay - I take it that you have checked to see if the interior light delay realy dims it after about 15secs? and checked the position of the switch?

    position 2 - interior light on all the time
    position 0 - interior light off all the time
    position 1 - interior light on only when door open

    If the interior light delay relay is anything like the one on the classic 900 then it is not so much a relay as a small sealed cylindrical unit containing, I would have thought, a capacitor.

    /john

    I may stand corrected on this




  5. #4
    Motor Mouth
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    Re: Interior light

    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!!

  6. #5
    Full throttle john's Avatar
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    Re: Interior light

    I was perfectly willing to stand (or sit) corrected and I bow and scrape to superior knowledge.

    However, the inferior aftermarket device to which you refer was a Saab part bought from a Saab dealer, despite being cylindrical!

    When I spoke to the parts chap I asked him: "so I just plug a relay into the fuse/relay box somewhere, then?" He said No.

    I knew I should have kept Schtum! So what's the answer? ;-))

    /john




  7. #6
    Motor Mouth
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    Re: Interior light

    Err oopps, maybe I should sit down. Seriously though the 900 (1986 and 1990)definately have a relay. Not so confident about my 9000 Carlsson. If I get a chance over the weekend I'll take a look.

  8. #7
    Full throttle john's Avatar
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    Re: Interior light

    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!)
    /john




  9. #8

    Re: Interior light

    Did you boys finally decide who was right onthis one?

  10. #9
    Saab Afficionado
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    Re: Interior light

    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.

  11. #10
    Motor Mouth
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    Re: Interior light

    Looked at the 900 wiring diagram and that too shows a time delay relay for both early and late models.

  12. #11

    Re: Interior light

    I'd like to thank all the contributors - thanks.

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