Reading the item description tells you that the seller is not an uninformed or “the average” player that some are trying to make them out to be.
From the item description:
“
Gorgeous lightly played, custom made, with FENDER LICENSED Warmoth neck and body Jazz Bass. Poly finishes are both by Warmoth. Well in excess of $1,400.00 worth of parts here, but must sacrifice. Too many guitars. Hurts to let this one go, but can only play one at a time. Swamp Ash body, Birds Eye highly figured maple neck. Pau Ferro fingerboard. Barely a mark on this instrument and definitely NO chips. Hip shot vintage classic reverse wind tuners with matching drop tuner and additional matching regular tuner included. At one time had standard Fender 5 hole bridge with traditional Jazz bridge cover. Could easily be reverted to that. Those covers are readily available on line. Originally wired for 18V active preamp. Decided to go with the more organic sounding passive harness. Hipshot badass style bridge with brass saddle inserts. Bartolini B Axis hum cancelling pickups sound incredible. Head stock logo done with laser cut vinyl by a sign shop using the same material as car graphic wraps. 3 dimensional and beautiful. It’s not OEM Fender, though the quality is much better. Imagine the cost of getting Fender’s custom shop to put this together. also new tweed case
shipped to continental usa only”
Sounds like they know a lot about the bass... At the very least it sounds like they would know if it had electrical or mechanical issues like the OP asked...
Scenario could have been the seller is selling for someone else who wrote up the description. Still, the seller was unmotivated to do any legwork to answer. He was polite about it, though, and the OP escalated it to a pissing contest.