I've gutted and rebuilt my trunk, so I played with this stuff. Theres a little spring and lift assist lever, and probly a little sensor..Try and disconnect the little flapper thing maybe do a little adjusting, it may mp just be a poor connection or pinched wires, should be simple fix either way. Mine does this on occasion, cuz I removed the lift spring, cuz the trunks lighter. But, mines slightly open when it happens.
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