04 ds club car. Just installed dcx500 alltrax controller, 500 amp d&d motor, sw180 solenoid and 4ga wires. Drove the cart in the shop, was 100% stock. Switched out the parts above and now it won't run. The solenoid will not close, reset obc, no change, controller blinks 6 red, which says undervoltage, charged all night, pack reads 52v, new wire does pass thru obc. Batteries are US replacements about 1-1/2 yrs old. At a loss. Thanks for the help.
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