Power liftgate issues

[Eric Simnick]

I have a 2015 expy with the power liftgate, it opens with all the buttons but will not close using any of the buttons. Tried resetting it with no luck, any help would be much appreciated.
Thank u

 

[Sgt Darkness]

I would bet it’s corrosion on the contacts since those two buttons are sitting ducks for the weather, especially the outside button below the plate, however, there’s always a however in there somewhere.....are the relay/swich wires wired in serial or parallel? I would gain access to the relays and use a multimeter to check for volts and ohms with switch’s/relays in both the on and off mode, if possible. These tests will tell you exactly what the problem is......good luck Bud

 

[Eric Simnick]

The 2 buttons inside the vehicle don't work to close it. When u push the buttons to open it they work but not to close it

 

[Sgt Darkness]

Could check to make sure there is a good clean ground for the relay buttons.....I’m just throwing stuff out there right now until an electrical guru chimes in......could all the switches gone bad all at once....or I mean 1/2 a switch at once...probably not. Seems to me it’s a ground or a bit of corrosion type problems.

 

[Plati]

Is there a button on the key fob for that? Is there a code sequence on the drivers door keypad to do that? Other things to try.

Unless somebody chimes in, if it was me ... I'd be looking at a wiring schematic and diagnosing it that way with a multimeter next.

I don't mean to sound snarky but you need to understand how something works and then its usually easy to diagnose why not working.