Hello , new to the page here, hope to get some help.
Have a JLG 2630ES that just decided to stop driving all of sudden, scanner shows code 256 DRIVE PREVENTED POT HOLE NOT ENGAGED one was a little sticky so did a hale Mary and replaced both switches with the new stile. no difference, scanner shows left switch operating opposite of the right, Switches are operating properly along with all linkages, have voltage threw the switches back to the lower controller ( switches are wired in series ) I did notice that if I disconnect the proximity switch the code goes away, and it will start to drive, but the left brake will lock after about 3 seconds