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  1. #1
    Leighton

    Join Date
    20 Jan 2014
    Location
    south wales
    Posts
    3
    Saab(s)
    2006 Saab 9-3 Con 1.9Tid
    Thumbs Up:   0

    Head scratcher..

    Hi guy's

    not sure if this is the place to post this but here goes,

    I have a 2006 Saab 9-3 1.9Tid (Remapped) Vector convertible and for some reason unknown to me the-

    1) rear right hand indicator
    2) rear (inside) right hand side light
    3) rear right side revers light
    4) rear left fog light (I have 2 rear fogs, well had 2 lol)
    5) rear (outside) left hand side light
    6) my boot interior courtesy light
    7) my rear windows, (can hear the switch click in the panel but no movement up or down)

    are NOT working


    I have checked all the fuses and not one has blown or broken all the wires as far as i can see are intact and not burnt. is there a chip board or panel that controls these.

    ANY IDEAS FALKS ..??

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  2. #2
    Saab Nut 9-3 Aero's Avatar
    Join Date
    22 Apr 2013
    Location
    Tromsų, 69° 41' N
    Posts
    464
    Saab(s)
    2009 9-3 2.0T SC Aero XWD\eLSD. eSID2
    Thumbs Up:   4
    As your request didn't call for good ideas only, I take the opportunity to elaborate on a few bad ones.

    The power distribution for the none working units is mainly through Rear Electrical Centre (REC) fuses #10, -21 and -26, together with #6 and -7 for the rear windows. The finding here is that there are circuits fed from the former which are working, i.e. the fuses are ok - as you've found.

    Same story goes, as far as I've seen, for cable connectors supplying power from the REC - "good - and bad guys" on same connectors.

    Same story goes for ground connections.

    The only community I have stumbled across, which possibly could have the - guys in common, and yet make a difference, is the I-bus. Bad / incorrect signals / commands can be fed in series (in a way I however don't see) on this bus, together with the "good" ones.

    So Diagnostic Trouble Codes, thrown fault code(s), are needed to disprove/prove my idea.

    Moisture can provide all sorts of peculiar behaviours when it causes oxidation in electrical circuitry. Any signs / traces of (dried) water in the area of the REC or in the boot as such?

    Cheers

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  3. #3
    Leighton

    Join Date
    20 Jan 2014
    Location
    south wales
    Posts
    3
    Saab(s)
    2006 Saab 9-3 Con 1.9Tid
    Thumbs Up:   0
    Thanks for getting back to me,

    no there is no fault codes on the diagnostics check and no warning lights on the the dash still the usual "check ok" on fire up.

    I do have condensation in the rear light and small amount of damp in the boot spare wheel well.. Is it possible that it could have caused damage, Iv checked all the wires and components for damp with a damp meter with no result.. All showed dry

    I'm just hoping it's not something major.. and not expensive..

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  4. #4
    Jeffrey
    Master SaabTech/Moderator Burnsside42's Avatar
    Join Date
    25 Oct 2010
    Location
    South Eastern PA
    Posts
    1,308
    Saab(s)
    - 86' 9KT - 95' 9K Custom CS - 06' 9-3 Sedan - 06' 9-3 Combi - 08' 9-3 TurboX -
    Thumbs Up:   2
    Is there power from the Rear Electrical Center? How about the Under Hood Electrical Center? You likely need one of these and you will need to have it programed via a Tech2 if in fact you do need to replace one.

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  5. #5
    Saab Nut 9-3 Aero's Avatar
    Join Date
    22 Apr 2013
    Location
    Tromsų, 69° 41' N
    Posts
    464
    Saab(s)
    2009 9-3 2.0T SC Aero XWD\eLSD. eSID2
    Thumbs Up:   4
    No warning lights on the the dash - and no fault messages in the SID I presume - and no thrown DTCs. Yet we know for sure there are electrical faults. Meaning they are not reported on the I-Bus, by the REC.

    Could you kindly give more detailed information on how the diagnostics check were performed, and equipment being used?

    EDIT: Did all the faults come at the same time, or one (or more) by one?

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    Last edited by 9-3 Aero; 22 January 2014 at 19:21. Reason: One more question

  6. #6
    Leighton

    Join Date
    20 Jan 2014
    Location
    south wales
    Posts
    3
    Saab(s)
    2006 Saab 9-3 Con 1.9Tid
    Thumbs Up:   0
    Thanks both, I'm taking it to an auto lecie in the morning so il update the results tomorrow hopefully..

    the last garage said it wasn't showing any fault codes at all, but I'm guessing it was a standard fault code reader for all cars and not a Saab specialist that's about as much as I can guess, and because there was no warning lights , they said it was to complicated for them and to see the lecie they put me in touch with.

    The REC is the rear fuse box, right? If it is then I can only guess there's power coming from it because other things that have fuses located there are working fine..

    Im still stumped why the rear windows don't go down, there's power there I can hear the switch clicking but no motor noise or movement. The fuses are fine and of what wires I can see are clean and damage free..

    Its a a real "head scratcher" I'm hoping the guy who knows the wires can help tomorrow...

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  7. #7
    Saab Nut 9-3 Aero's Avatar
    Join Date
    22 Apr 2013
    Location
    Tromsų, 69° 41' N
    Posts
    464
    Saab(s)
    2009 9-3 2.0T SC Aero XWD\eLSD. eSID2
    Thumbs Up:   4
    Yes, the REC is rear fuse box, or actually a control module. And yes, power is fed from the fuses which are in question with regard to the non-working circuits, as stated in in my first reply. However, there is as well a controller integrated, purpose of which is to strobe (command) power from the respective fuses to circuits as requested "to work", i.e. lights, direction indicators, windows etc. These command signals are conveyed to REC and other modules, on the I-Bus.

    If you pulled the bulb of one of the working lights at the rear, and watched for any messages to pop up on SID, you would know that at least one of the command sets on the I-Bus is working.

    All the non-working lights at the rear of the car is "commanded" to light through the controller in the REC, whereas power to the rear windows is not - its fed directly from the fuse(s). However is the operation of the windows as well dependent on commands on the I-Bus, fed to the respective door controllers. So power for the window motors could be present in the door modules, but will not be strobed to the motors IF the commands on the I-Bus are incorrect - or not present.

    My idea of asking about moisture in the boot, is that oxidation or corrosion in the REC can cause problems like the ones in your 9-3. As well can it do with regard to the few cable connections in the boot. You didn't reply to my "EDIT-question": If the problems came creeping, i.e. one by one, is the likelihood that corrosion in mentioned components being the culprit to look for. If not, it could be an electrical fault, either in the REC or wrong or missing commands on the I-Bus. The latter could be caused by a problem in the Column Integration Module (CIM), or inputs to it.

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