so where to begin...my 05 jeep grand cherokee laredo PMS's and has random problems all the time. First my AC half of the time doesn't work on fan 1,2, or 3... but always on the strongest 4. Also my airbag light is on and my horn doesn't work. I bought this car as a beater car that i don't really care but these problems are driving me crazy. i want to get this all fixed so i can possibly trade it in. I called jeep and scheduled an appt but its $90 to determine the problem and i guess the $90 goes towards parts to fix it... but i wanted to know if anyone on here can help first