Hi, I have a 2014 d max with automatic gearbox. The issue I have is that the 4wd will not engage. I can hear the motor trying to engage but it winds in a bit then out, then retries a few times before giving up and displaying a 4wd fault light. I have checked the front axle motor is ok, this works if provided with separate power supply and also the feedback switch is working. I removed the motor from the gearbox and checked that there was not any major resistance to engaging 4wd. All seems ok but the motor only rotates a small way and then goes back. Any advice would be appreciated. Also, does anyone have a wiring diagram for this system as I would like to do a pin to pin check of the wiring to make sure there is no damage between the 4wd motor and the ecu. Thanks in advance.