I would start with a mutimeter and check the switch, then the slide motor. Or visa versa, whichever is easier. Unlikely a fuse if the other slide works.
Can you lift the sections from the cargo tray to access the motor? Have you tried the switch on the other side?
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Bob in College Station, TX
2015 Entegra Cornerstone 45K
2012 Jeep Rubicon, 1994 FXLR
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