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      05-08-2022, 11:06 AM   #5
JAS1169
Private First Class
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Drives: BMW 2003 Z4
Join Date: Sep 2017
Location: Mechanicsburg, PA

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Re-check your plug into the white convertible controller box. Spray Electrical contact cleaner on both the plug as well as to the area of the white box where it plugs into. Afterwards, (you may need two people) try moving the box with cable plugged in around a little as you push top down/top up. If you get top movement then the problem is in the box or harness plug.

If nothing happens then, your going to need a code reader.

More than likely a wire within the harness that runs between the liner and cloth roof from the controller to the front of the top has broken. You may have also have snapped a sensor wire (same harness) when doing the liner. Same results, the top does nothing.
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