EM TuningJMB Retrofits
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  1. #1
    DALE_AVANT's Avatar
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    Lightbulb Avant boot lid light and boot ceiling courtesy light...

    Hi all.

    I noticed this week that neither the red&clear light on the inside of the bootlid, nor the courtesy light on the boot ceiling are working. The other interior courtesy ceiling lights work as they should.


    I have checked all bulbs (one in the boot and 2 in the courtesy light), and replaced the boot lid one as it had gone.


    Locked and unlocked car, ignition on and off, and these 2 lights are still not working (I have also tried the ceiling light switch in all 3 positions).


    Does anyone know which fuse corresponds to these 2 lights so I can check it.

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  3. #2
    DALE_AVANT's Avatar
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    Any ideas on this one?

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  4. #3
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    Is there a fuse listed?

    Have you got power to the bulb? Maybe a dodgy boot microswitch.
    Ingolstance Read about my A6 HERE.

  5. #4
    Woorlord's Avatar
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    Power for roof lights and boot lights come from the Convenience Module and supplied by various fuses.

    The following circuit shows fuses associated with convenience module:


    And here we see the front and mid interior lights:

    The items in green shows the main power take off for the roof items, known as post [B250]

    Here is the saloon boot wiring (red highlighted items are not used on the Avant),

    And you can see where the power is linked across - shown above in green.

    And the boot lights for the Avant are shown below:



    And here is the boot switch diagram:



    With this info you should be able to check wire colours for breaks at the various "hinge" points on the tail gate.

    So hope this helps.
    Last edited by Woorlord; 12th March 2012 at 17:33.
    2001 A4 Saloon 3.0 Quattro Sport Tiptronic - Platinum Leather/Heated Front Seats/BOSE/DIS/Cruise Control
    Retrofits:GmBH Bumpers, F&R Ambient LEDS, OEM Valeo Xenons (D2S) & Headlight Washers, Auto-dipping RVM, Footwell Lights, Vent Control illumination, ISO-Fix, RNS-E & OEM Bluetooth + VIMhack + Video i-pod & Aux inputs, Rear PDC, Powerflow 100mm Tips, Reversing Camera
    2012 A4 Saloon 2.0 TDIe Technik (163ps)
    Diagnostics:VCDS HEX+USB+CAN Cable

  6. #5
    5th Gear

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    Open the boot and check on the dash to see if its showing that its open also open the boot and lock the doors if the indicators flash and the alarm sets its a break in the wiring or the micro switch

    you only have to do one of the above as they will give the same answer!

    Check this before anything else its the easiest and the cheapest

  7. #6
    DALE_AVANT's Avatar
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    Thank you for the help thus far James/Woorlord/Stu.

    Checked the conv. module fuses at 24 and 38 and both seem OK.

    Checked the door graphic on the dash and it does not register when the boot or O/S/R door are opened.

    Also (not sure if this is linked), my boot release button on the keyfob does not work currently.

    So in summary, are we looking at boot micro-switch as the issue? Would this affect the rear (bootspace) ceiling lights too?

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  8. #7
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    i would go for the wiring first

    find where it goes in to the tail gate remove trim where you need to and peel back the rubber and check the wiring

    i have the saloon and it was the wiring its a common problem is the wiring breaking yes if its a break in the wiring its not showing the door as open so wont put the lights on

    as for the door i recon that will be wiring too

  9. #8
    Woorlord's Avatar
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    Circuits added to post #4 above.
    2001 A4 Saloon 3.0 Quattro Sport Tiptronic - Platinum Leather/Heated Front Seats/BOSE/DIS/Cruise Control
    Retrofits:GmBH Bumpers, F&R Ambient LEDS, OEM Valeo Xenons (D2S) & Headlight Washers, Auto-dipping RVM, Footwell Lights, Vent Control illumination, ISO-Fix, RNS-E & OEM Bluetooth + VIMhack + Video i-pod & Aux inputs, Rear PDC, Powerflow 100mm Tips, Reversing Camera
    2012 A4 Saloon 2.0 TDIe Technik (163ps)
    Diagnostics:VCDS HEX+USB+CAN Cable

  10. #9
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    I have this same problem. My car isn't recognising when the boot is open. I'll have a look at the wiring at the hinges. This might seem like a daft question but is the microswitch in the tailgate lock/latch mechanism?
    A4 (B6) 2.5TDI QUATTRO SPORT AVANT

  11. #10
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    yeah it will be in the lock and you have to replace the whole lock unit but check the wiring first

  12. #11
    DALE_AVANT's Avatar
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    Superb help, thank you all.

    I will report back once I have rectified

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  13. #12
    jamesey's Avatar
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    did u sort this mines the same?

 

 

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