EZGO MPT1000 48V No go all the time, possible controller?

itstheburns327

i have a 2005mpt1000 48v workhorse. the controler status light is blinking 3 times then a short pause then blinks 3 times again. if i flip the tow/run switch to tow, wait a few mins, switch it back to run, it moves then nothing. , ive checked the micro switch at the connectors on the controller. i couldnt get a reading from the pot. the solenoid does work. i bypassed it just to eliminate it as a problem the battery pack has 51v and they all are load testing good. the 15amp fuse inside the weatherproof case is good. I'm convinced its a problem with the controller. i did a continuity test on the f/r and tow switches. everything checks out. the only thing left i feel is the controller. i cannot find anything online about status codes. any help will be appreciated.

BGW

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itstheburns327

Update. Based on the controller codes that i finally found from curtis's website tells me there is a precharge fault/controller fault. What i have done to get around this (for now) is i added a jumper wire across the large solenoid terminals. It is a small gauge wire that keeps the system charged. I tried using a charge resistor and it was not allowing enough power to cross over so the wire works fine. I would not leave it like this too long but it is working until the new controller comes in.

rabbitreborn

you need to trace down the wire harness, there is a butt splice under the cart between the front seat wrap and where the harness starts moving up the firewall to the keyswitch. More than likely this splice is corroded or has come undone.... You may not need a new controller, just a simple wire repair.

itstheburns327

all the connections are good, ezgo tech was there and confirmed my results. the cart was starting to hiccup and finally stopped. pulled all the connections, tested them, and reconnected everything to eliminate any bad connections. i still hate electric carts tho