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m42 fuse box different than M20??

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    m42 fuse box different than M20??

    Fuse 21 is in question here.. car dies over night


    according to the ones I pulled up off Here.

    fuse 21 controls

    OBC
    fuel delievery
    radio mem
    glovebox light
    flashlight
    trunk lights
    fuel guage and Econ guage.

    I pulled every single one and during the "draw test" my test light stayed lit, and 8.5 volts where pulled. Im fucked so I might just but the dam thing on a switch..


    #2
    The easiest things to check: The glovebox light and the trunk light. Do these stay on when the doors are closed?

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      #3
      If you have a power probe it will help you find which wires are ground and which wires have a parasitic draw which is too small to light a test light.

      1986 325es (69k) Garage Queen Buy It Now 10k;1986 325es (track rat) 2.7i How-To & 1.1/1.3Motronic UpGrade
      1991 318is (daily driver) 1991 318is M42 Maintenance How-To;1989 325i (parts car)

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        #4
        cool, ill get on it and see whats going on.

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