I am getting a shut down but only when trying to move forward. I noticed when moving that one motor (Right from controller) is trying to go and the left is not moving. I thought maybe the motor was bad or shorted, Tested for shorts and looks good. I swapped the motors (Left to right and right to left) the the problem stayed on the left motor. I have run test O20 and get the +15V but not the -15V. FU8 is good and cables all meter good. I am seeing 36V at TMB+/- when the switch is on. Service manual says to replace vehicle Manager but wondering if there could be something I am missing.