Desparately seeking Xantia blower mod diagram - Page 2
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Thread: Desparately seeking Xantia blower mod diagram

  1. #26
    1000+ Posts Ken W's Avatar
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    Hi Stephen,

    Let's go with the circuit you have found.

    Is the blower switch on your ignition switch working OK? If so you can use the return from the switch to power the relay coil on pin 86. If not you will need to find another ignition switched lead to power the relay (maybe the cigarette lighter or radio feed). Connect the other side of the coil 85 to chassis. Don't cut the lead to the ignition switch from the battery, just remove some insulation and solder another thick lead to run from this to terminal 30. Then connect the cur lead that goes to F20 and the blower module/motor to pin 87.

    Is that easier to follow.

    Cheers Ken

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  2. #27
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    i don’t think the switch is working now Ken, but then again?…I had the blower briefly working wired up in the car on two occasions after removing it and testing on the bench with a transformer. In the car when I connected it all back again I only ran it for a about ten seconds as it was going full tilt and I though it might have a hernia or cause grief somewhere else. Since that I disconnected and have just driven. I made up a juicy earth lead straight to blower then onto a bolt assumed on chassis close by which I thought might provide better earth but blower wouldn’t run anyway, so not sure yet even if that earth is correct.
    Am I wrong thinking the relay is to bypass the ignition blower switch as this is one of the possible issues that cause them to die in the first place?

    the penny dropped on that photo with the orange lead on grey plug number one,the power is as you keep pointing out T ing off the orange on the ignition side.
    Last edited by forumnoreason; 4th November 2017 at 10:57 PM.

  3. #28
    1000+ Posts Ken W's Avatar
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    Yes that is exactly what the relay is for - to take all the load off these switch contacts if they are not completely burned out yet. The idea is to fit relay 8048 from the Series 2 Xantia circuit that Seasink originally posted.

    Cheers, Ken

  4. #29
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    I think I get it now finally, just have t research how to access the fuse box.
    while I’m raving on where does the comfort relay live?

    punting it affects operation of climate control?

    guessing that could also be worth investigating connections, damage!

    A bit more googling came up with the speed control resistor going bung on Pugs, so will endeavour to find where the xantia one lives, as that could be snafu too, I imagine it lives tucked up somewhere impossible to reach behind the radio I guess :[

    just removed the pollen filter and was not very impressed. gave it a wash but I’ll probably get a replacement.
    Attached Thumbnails Attached Thumbnails Desparately seeking Xantia blower mod diagram-a55759a6-dc35-449a-aa4f-6747c96fb0b9.jpg  
    Last edited by forumnoreason; 5th November 2017 at 02:25 PM.

  5. #30
    1000+ Posts Ken W's Avatar
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    The picture you have found is the Textron box which is the early BSI that only exists in the Series 2 Xantia. Your car should not have one of these.

    The blower module (it is much more complicated than a resistor these days) is mounted in the plastic housing that the blower motor fits in.

    The soft/firm hydractive solenoids are directly controlled by the Suspension Computer that sits beside the engine ECU right up front. I would leave it as it is until you have some climate control working.

    Cheers, Ken

  6. #31
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    Thankyou again Ken, I had a quick demented search for the resistor which is described in Haynes to be in the base of the heater and nup nothing there, (since learnt only on non a/c versions) there was a black box tucked up the side though on the right side, I had a quick look at the circuit bosrd in it and nothing looked fried.
    Last edited by forumnoreason; 6th November 2017 at 04:49 AM.

  7. #32
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    Oh well fitted relay and not a sausage. Mood altering experience. Cranky.

    Maybe the transistor thing in the blower motor shert itself. Will have to remove and inspect.

    Its got me stumped.

    Back to the drawing board.

  8. #33
    1000+ Posts Ken W's Avatar
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    Is the new relay clicking in when the ignition is turned on? Are you getting 12 volts to the main power feed to the module/motor assembly? Is F20 good?.

    Is there another relay on the blower module clicking in when the fan speed is set to maximum?

    Cheers, Ken

  9. #34
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    tbc Ken sigh!

    ps yes hearing relay cick on.

    power available at fan blower connection however the brown plug to motor is another mystery.

    Testing the motor with a 12V source outside the car I found the positive was on the second pin of the fourpin brown connector. However the plug has the red power on the first pin, orange then black then white. So I just flipped the red over to the orange pin and it works albeit full speed in the car.

    but I guess the orange and white wire are to do with speeds and climate control so no aircon!

    replaced wires as should be and getting about 3 or 4 volts on orange wire which I think emanates from climate control, had a look at climate circuit board with magnifying glass and couldn’t spot any obvious damage. Looking at replacing this with another to test. Wondering if temp sensor on mirror has effect on system operation as this is not connected I don’ think, replacing mirror with second hand one as I busted mine on gate the other day!
    Last edited by forumnoreason; 9th November 2017 at 05:57 PM.

  10. #35
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    Hi
    This is the INFO- RAPID from Citroen,hope it helps.


    Sent from my iPhone using aussiefrogs

  11. #36
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    Quote Originally Posted by Gman View Post
    Hi
    This is the INFO- RAPID from Citroen,hope it helps.
    Great! I think that is exactly what we used many years ago on our Xantia when hot smells were emerging from the dashboard!!!
    JohnW

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    National Co-ordinator, Renault 4CV Register of Australia

  12. #37
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    thankyou Gman, this is the definitive diagram. Hopefully others who encounter the problem will see it. I’m still trying to work out what is prohibiting my aircon functioning.

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