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Thread: Interior switch illumination failed.

  1. #1
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    Interior switch illumination failed.

    I have just noticed that i do not have any illumination on any of my interior switches, heated seats switches, window switches etc.
    I guess that there must be one bulb with a fibre optic going off to each switch. Can anyone tell me where this bulb is situated please.

  2. #2
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    You've failed to put car details.

    I think none of them work that way so you're looking at something else - bad supply/ground/etc.

  3. #3
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    no fibre optic. individually lit

    TT
    ================================================== =====================
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  4. #4
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    Car is an 2005 S type 3.0.

  5. #5
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    Check fuse F33 (10 amp) in the Primary junction (Passenger compartment) fuse box. If not that, it looks like pretty much all, if not all switch illuminations take their feed from the General electronic control module, connector CA31 (20 way black), pin number 11. (Fuse F33 feeds pin 1 on CA31)

    Regards, OW
    1999 S Type 3.0L SE, A truly lovely old girl that's served me well. Probably the best car I've had. Now retired.
    02.5MY (X202) S Type 2.5L SE, 58,000 miles, full Jag s/h, all papers, MOT's, receipts etc from new when purchased.
    2006 X type SE 2.2 Diesel. Supposed to be Mrs O's economical commuter car.
    2004 (X202) 2.5L Sport plus, to replace the 3.0L

  6. #6
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    Thank you for that info OW. Will check fuse when it stops raining.

  7. #7
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    Update: Checked F20 and ok also supply to fuse ok, therefore supply to 86 on fig.9.2.
    Checked F33 and ok also supply to fuse ok, therefore supply to 61s on fig.9.2.
    Now need to check the output on the front electronic module, shows it to be on the passenger side around the A post. Can anyone narrow it done for me please, is it in the engine bay on interior?
    Thanks.

  8. #8
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    It's in the passenger side foot well behind the trim just above the inertia cut off switch.

    Regards, OW
    1999 S Type 3.0L SE, A truly lovely old girl that's served me well. Probably the best car I've had. Now retired.
    02.5MY (X202) S Type 2.5L SE, 58,000 miles, full Jag s/h, all papers, MOT's, receipts etc from new when purchased.
    2006 X type SE 2.2 Diesel. Supposed to be Mrs O's economical commuter car.
    2004 (X202) 2.5L Sport plus, to replace the 3.0L

  9. #9
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    Again, thank you OW.
    Located the front electronic module and confirmed that i have a 12v supply on inputs 86 and 61s, but no output on the orange core at CA31-11. Checked for 12v at FH59-7 (SCP network) and with the ignition on am not getting a supply. Should i expect a supply?

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