G22 runs 10 seconds

[quickviii]

Hi, I hope someone here can shed some light on whats going on. I purchased a 2003 G22 from a friend. Cart came to me with dead 1 year old batteries and info from my friend who said it just runs when it wants to. I have charged the batteries and they all test good both voltage (50 volts) and specific gravity looks real good on all cells. (got lucky with batteries comming back to life). Problem is that the cart runs for 10 to 15 seconds and then shuts down. Tested voltage accross the solenoid and have battery voltage at both large posts when cart is working, and nothing on the controller side of solenoid when it isn't working. Have checked every inch of the harness for corosion and pulled pins in connectors. Everything with the harness is in very good shape. Have pulled and cleaned the connector that plugs into the controller. It was clean and dry before I cleaned it, but did it anyway. After doing this I realized that the cart seems to reset as soon as I disconnect and the reconnect the controller plug. Normally I have to turn off the tow/run switch and wait 10 min before it will reset. Once again, the cart seems to reset right away when we play with the plug. Cart has been cared for very well. Never stored outside. kept clean, washed after every ride, and batteries were allways kept charged and full of water, untill the problem popped up. My friend lost interest and let it sit. Just some history if that helps. I have also jumped the solenoid with a heavy guage wire when the cart had shut down, but it didn't help. It really acts like a breaker is kicking and shuts down everything untill it sits for 10 min with the tow/run switch turned off, or I pull and replug the connector on the controller. I am hoping someone here had seen this before and can offer up a solution. I have read several other posts that come close to my problem, but haven't seen an answer. Please help. Thanks in advance.