Wont track straight

Year make and model? Sounds like connection. Grounding issues.

A 4 WD.is not meant to drive in four wheal drive unless on slippery surface like mud, ice, etc. the front drive wont slip like an AWD and will cause a bind if the wheals don't slip to take out the built up torque. This can damage the front lock hubs. Try it off road and see if it still dose it.

Check the fluid, Maybe you ran out of fluid or you have a broken steering pump belt .

wheel bearing

OK, you know how to save your trailhead by touching your vehicle icon and saving the location. At this point you can also select GoTo to provide routing. Your standard 255WT database is for driving, so it is not going to have your trails or terrain data, but you can go to the settings, route options, and select direct rather than on-roads and it will draw a straight line to your trailhead. It is still a good idea to carry a compass & map with you, but you can get a good idea of which way you are going by walking and seeing where you are headed relavent to your course line. I like using the display set to "Track-up" for off-road, so the top of the display is the direction I am going. Some people prefer North Up, but that is disorienting for me.

it could be the head race bearings a bit pitted or dry jack the bike up till the frount wheel is off the ground and turn the stearing from lock to lock if its ***** its the head race bearings worn out,,,also try pulling the forks back and frow any twist in them is fork bushes worn out and any twist in them is the stearing joints
also have the frount wheel balanced,,dont just take it for granted it is right,,it may not be?
good luck mike,t

well i would check tires balance and i would check drive line some time the center suport bearing gos out will make car vibrates hope this helps

It isn't the power steering box. You have some worn or broken components in your front end. I would only drive it to a garage to get it onto a lift.

Something out-of-balance somewhere. Start with the tires, check the wheels, then have the driveshaft balance checked. Do any off-roading?