so far no luck, still intermittent , but it happens in both directions , during accel, decel hi speed etc. sometimes runs for 2hours sometimes 15 min. so far we have replaced the power supply, v2v board, vec board, mtv board, all plug in relays, ran car on test with safety circuit jumped out, door locks jumped, gate jumped. checked braking transistor and associated wiring, all to no avail. this one is being a pain. running out of parts ha ha, gonna have to start swapping drive parts from car to car. will let you know.