05 Grand Cherokee, Limited, 5.7L

Hello all, hoping someone here can help me shed some light on my jeep. I've only had it for a couple of weeks now, so I'm not really familiar with it yet. Driving down the road the other day, the jeep started periodically beeping. Got to reading on it, and it seems like the traction system beeps when activated. Nothing showing up on the cluster, just beeping sporadically driving down the road at about 60. A day or two later it started periodically idling rough and having loss of power (limp mode I think), then shutoff going down the road.

Got the vehicle back running and got it home. Used the ignition key trick to get the codes, and I got the following.

P0315- no crank sensor learned
P0300- random multiple cylinder misfire
P0700- check transmission dtc's
P0480- cooling fan 1 control circuit
P0335- crankshaft position sensor circuit
U1411- implausible fuel volume signal received

Hoping someone can point me in the direction of a good starting point. My gut reaction is to swap the crankshaft position sensor, and check the throttle position sensor. I'm welcome to any and all advice.

 

Start with the crank sensor.

 

Ok, I'll start with that, I'll post back once I get that swapped. Thanks for the help.

I bought it with 104k miles on it, so I'll probably swap the plugs/wires/etc. for that and check belts too while I'm in there. Anything else I should check out? I've already changed the oil and filter first thing, and replaced the headlight bulbs that looked like candles with silverstars.