Blue Diamond RC 4 pin plug wiring info

by Plamen
(Sofia, Bulgaria)

I am trying to revive a dead pool cleaner with no any information and reverse engineering almost everything. There are many people tried to restore this unit and i got no idea who and what did so no reliable information of what changes has been made to wiring and components. So far i found a faulty remote control, i fixed it and confirmed the power supply unit and remote working fine. There are 4 wires 2 for power and 2 for can bus remote from PSU to the robot. It looks like they are soldered incorrectly and i need to confirm some how the pinout of the power and control wires in the 4 pin plug. Any help appreciated.

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