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  1. #1

    Join Date
    28 Dec 2014
    Location
    uk
    Posts
    3
    Saab(s)
    9-5 900
    Thumbs Up:   0

    saab 95 headlight failure - NOT orange relay

    Hi.

    I have a saab 95. It has a headlight failure notification.

    I have
    left low beam not working
    right low beam working
    left main beam working
    right main beam not working
    high beam both sides ok

    I replaced the bulbs. But the old bulbs were fine

    I searched the internet and discovered threads about orange box. I removed it. Re soldered as instructed. No difference.

    So I bought a new orange unit.

    Waited two weeks

    Fitted new box and .... no difference. Exactly as the one I "fixed"

    Checked the wiring under the fuse box and seems ok. Bashing with hammers does no good...

    now need help.... Please !!!

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  2. #2
    Saab Nut 9-3 Aero's Avatar
    Join Date
    22 Apr 2013
    Location
    Tromsø, 69° 41' N
    Posts
    464
    Saab(s)
    2009 9-3 2.0T SC Aero XWD\eLSD. eSID2
    Thumbs Up:   4
    Happy New Year

    Very weird option of the 9-5 headlight failures. Yet I haven't got an idea what is the culprit, and clarifications are needed to further twist my brain:
    - The headlights are halogens?
    - As I understand "high beam both sides ok" means both main beams are working when the springloaded "flash" function is selected.
    - No modifications are implemented, i.e. the lights were working until the problem occured.
    - The model year?

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  3. #3
    Frank
    Administrator nordwulf's Avatar
    Join Date
    30 Jul 2010
    Location
    USA - Netherlands
    Posts
    7,856
    Saab(s)
    previous: 2006 9-3, 2001-06 9-5, 2011 9-4X
    Thumbs Up:   123
    Can you clarify what you mean with low, main and high beam? There usually is only low and high beam.

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  4. #4

    Join Date
    28 Dec 2014
    Location
    uk
    Posts
    3
    Saab(s)
    9-5 900
    Thumbs Up:   0
    Hello. Happy new year.
    I meant;
    Right side light works
    Left side light does not
    Right low beam does not work
    A left low beam does work
    both high beam work


    All standard

    halogens

    Worked fine until one morning "bong" "headlight failure"

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  5. #5
    Saab Nut 9-3 Aero's Avatar
    Join Date
    22 Apr 2013
    Location
    Tromsø, 69° 41' N
    Posts
    464
    Saab(s)
    2009 9-3 2.0T SC Aero XWD\eLSD. eSID2
    Thumbs Up:   4
    When looking in the WIS, the model year is important; Kindly provide, if not inconvenient.

    The (front) side lights, which I understand are the ones Saab calls parking lights, are not monitored with regard to the filaments, e.g. the "bong" is caused by the not working right low beam. I do not (yet) see a commonality between the two not working lights, so is it possible that the side light could have been out before the the warning was given?

    I do assume you have checked the fuses in question pertaining to the two fuse boxes: Fuse #3 in the instrument panel fuse box (IP) for the left side light, and #13 in the engine compartment fuse box (UEC) for the right low beam?

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  6. #6

    Join Date
    28 Dec 2014
    Location
    uk
    Posts
    3
    Saab(s)
    9-5 900
    Thumbs Up:   0
    Hello

    It is 2004 saab 9-5 estate

    Checked all fuses visual and with multimeter

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  7. #7
    Saab Nut 9-3 Aero's Avatar
    Join Date
    22 Apr 2013
    Location
    Tromsø, 69° 41' N
    Posts
    464
    Saab(s)
    2009 9-3 2.0T SC Aero XWD\eLSD. eSID2
    Thumbs Up:   4
    Hi.

    The information given with regard to fuse designation pertains to MY2003, however applies for your 2004 as well. So far - so good

    The 12V (+30) for both low beams (or "dipped beams" by Saab) is supplied via relay FR15 in the UEC to one pin, #5 (56B) of the filament monitor module ("orange relay"), consequently must power be present there. The power is split in the module and fed to outputs on pin #4 (56BL) / fuse #11 (UEC) and pin #2 (56BR) / fuse #13 for left - right low beams respectively. So 12V should be measured on both sides of fuse #13 when left low beam is light.

    Power for right low beam is supplied from the fuse to pin #3 of the connector at the headlamp. Given 12V is not there, check continuity, close to 0 ohm, between the pin and the fuse when power is switched off.

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  8. #8
    Ron Fredey
    Saab Fan
    Join Date
    07 Jun 2012
    Location
    Pembroke MA
    Posts
    16
    Saab(s)
    2000 9-5 3.0
    Thumbs Up:   0
    LAIKATHEDOG - Just wondering if you got this sorted? My headlight bulbs were getting fried. Did the orange relay fix, but ultimately found the alternator was putting out 20volts. Voltage regulator fail, I suspect. Ordered an alternator and will put it in as soon as the temperature allows. Hope that fixes my issue.

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  9. #9
    Alex Andrews (Lex)
    Saab Enthusiast Lex Andrews's Avatar
    Join Date
    09 Mar 2011
    Location
    Scunthorpe, United Kingdom
    Posts
    114
    Saab(s)
    ‘02 9-5 Aero, ‘16 Skoda Superb SE-L Exec.
    Thumbs Up:   1
    I had something similar in my '98 SE. Found out to be the wiring in the headlight itself. Nudged it a couple of times. Fine after that till I sold the car a few months later.

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    More things change. The more they stay the same.

  10. #10
    Ron Fredey
    Saab Fan
    Join Date
    07 Jun 2012
    Location
    Pembroke MA
    Posts
    16
    Saab(s)
    2000 9-5 3.0
    Thumbs Up:   0
    I replaced the alternator and that solved the lights blowing, but my high beams (new lamps) don't work. 2001 Saab 9-5 SE.

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