Need help with an engine diagnosis. Had two trouble codes initally appear: P0524 - no decription and P0118 Engine Cooling Temp Circuit High Input. At the same time the TCS light stayed lit for longer than normal after start up. Now get P0481 Cooling fan 2 Control Circuit Malfuntion.

Anyone else experience this ? Any good web sites to help me work through diagnosing components and repairing?

Thanks!!