If the voltage between B- and M- does not start at the voltage less than the voltage on that pin or pins and climb to equal that voltage when the solenoid clicks, you get the welded solenoid contacts error. I don't have a wiring diagram for the cart, or a pinout for the controller plugs, but the way that error flag works it the voltage between B- and M- is compared to battery pack voltage that applied to the controller via one or more of the pins in the control wiring plugs. Would this indicate a bad motor? Buggie is 48v 4x4 with 2 advanced sep-ex motors. What do you guys think i should check next? M1 on the controller goes to A1 on the motor and B- goes to battery ground. When i turn the key on i can hear the contactor click, then drop out. ![]() The controller for the front motor flashes 4 times and the diagnostics chart i found here states "Contactor welded or wiring fault giving a high voltage between M1 and B- before closing the contactor" so i replaced the contactor but still having the same problem. ![]() I recently acquired a 09 Bad Boy Buggie xt with 2 one for each motor blue Sevcon Millipak controllers.
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