i recently changed my tps. before i could get it changed my speedometer quit working. i installed the new tps and drove it down the road and it stalled out and the check engine light came on. i had it scanned and it came back with a speed sensor. i replaced the one on the transmission. the jeep is a 2002 liberty. i cleared the computer drove down the road and still no speedometer and the light came back on. i scanned it again and it still shows speed sensor. is there one on the rear end. this thing is driving me nuts:? any help at all would be greatly appreciated. thanks