I am working on a 36v nissan with a n68 control system (sorry no model or serial to speak of, no tag and stamping gone). Anyway the truck has no f/r and the backup alarm comes on the second you plug in the battery but has no codes, lift and steering works. Checked the f/r switch, seat switch, key switch, brake switch, fuses/links, and contactors (all ok). While checking the wires at the control board I found that if I pulled on one of the plugs (10 pin)partially out that the contactor would pull in and the truck would work until you try to change direction. So I took all wires out of the plug to check but could find nothing wrong (all were corrosion free and not loose). This leads me to believe that the problem is in the board. But since I have no service info on this truck I don't want to replace the board till I can know what other cicuits may be involved. Any help would be greatly appricated.
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