1998 E39 528i SE> dipped light on after ignition off

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  1. 1998 E39 528i SE> dipped light on after ignition off 
    #1
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    <<CORRECTION>>Hi, yesterday after my wife dropped kids at school, rang me to tell that the drivers' <<HEAD>> light was on after she locked the car. She mentioned that the indicators were on after she returned to the car at school (that's approx. 10 minutes after locking). At that time I was at work. I have asked her to check all switches are off and the indicator stick is in neutral, which she did. I asked her to power on the car and turn all the lights on, they do come on. Then after ignition off and key out, the same light was still on. Asked her to remove fuses 16 and 41 (LCM) but the light was still on. At the end asked her to remove the wire connection to the light affected, but she could not do it, so she gave up. By 1800 the battery was dead :(. When I came home I went to check, the car was dead cold, no power, the doors were unlocked.

    I am suspecting a shortcircuit somewhere but could be the LCM (the fuses just puzzled me).

    Any thoughts? I will have a access to electrical multimeter.

    Thanks in advance
    Last edited by bulboy; 10-12-2009 at 15:12.
     
     

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    I do know that on my e36 if you turn the engine off then push the indicator stalk all the way up or all the way down it will put the corresponding side lights on. You have to give it a good push tho. So since your wife mentioned the indicators were on then she might have done this with her hand bag or something as she dragged it out of the car it may have snagged the stalk. This function switches the parking lights off once the indicator stalk is back to normal position and the engine started so maybe the stalk switch is suck or broken. Just a thought hope it helps.

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    You are right to suggest removing fuses F16, F41...but there are also F112 and F113 that connect the LCM to power. On your car, the LCM controls the beams independently by built in switching transistors, so I'm guessing the right beam one has failed so you could be looking at a replacement LCM .


    Quote Originally Posted by Class-- View Post
    I do know that on my e36 if you turn the engine off then push the indicator stalk all the way up or all the way down it will put the corresponding side lights on. You have to give it a good push tho. So since your wife mentioned the indicators were on then she might have done this with her hand bag or something as she dragged it out of the car it may have snagged the stalk. This function switches the parking lights off once the indicator stalk is back to normal position and the engine started so maybe the stalk switch is suck or broken. Just a thought hope it helps.

    Class--
    That will be right for parking lights, but OP mentioned the beam is dipped.
    Last edited by xXNealXx; 10-12-2009 at 15:15.
     
     

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    Right, can someone point me to a good reference showing ALL fuses. So far I got the two pictures showing the boot and glovebox compartments. The fuses are numbered up to 66 (plus the 75, 76). I was puzzled that the light was still on after the fuses were off which either means some shortcircuit or as Neal advised some more fuses to disconnect.
    If it is the LCM transistor, then I should buy one from ebay.
    Last edited by bulboy; 10-12-2009 at 14:44.
     
     

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    F112 and F113 located in drivers foot well behind the carpet



     
     

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    Sorry, just checked some other postings. confusion over which lights are which, so checked the manual and it seems it is the Head light that was on. (the one near the grill). That points more likely towards the LCM...:(
    Last edited by bulboy; 10-12-2009 at 15:44.
     
     

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    My bad, mis read hope you get it

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    Quote Originally Posted by bulboy View Post
    Right, can someone point me to a good reference showing ALL fuses. So far I got the two pictures showing the boot and glovebox compartments. .
    The fuses listed above are the ones for the LCM. The lights are controlled by transistors as also mentioned, but the transistors have short circuit protection so there is no need for individual fuses.
    The lights would have still been on because fuses 112 and 113 are the main power fuses for the LCM.
    If there was a short in the wiring you could probably check that by unplugging the wiring connector/s from the LCM to see if the light goes off. I imagine that disconnecting the power completely from the LCM for a while could possibly reset the fault although it's an outside chance.
     
     

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    hm, i feel odd.
    I went this morning to look into the issues ... and could not open the driver's door. I turned the key to the left at more than 90 degrees and still nothing.
    I am able to open the trunk, so I am safe there, unfortunately have not got battery charger handy...:(
     
     

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