Trying to help my brother out. He has a 2012 qx that goes straight to 4LO as soon as you start it. He changed the switch, computer, and actuator. Nothing changed with replacing any of those parts. He has an extra actuator gutted and manually put it in 2wd so it's driveable. I've only used Hp for basic tuning on GM, and wondering if there is anything I could monitor with Hp to see whats telling this vehicle to go to 4lo
