where is the pcm on 2002 ford eccursion

The ABS computer is different than the Power Train Computer. The Power Train Computer is on the left hand side of the firewall. The ABS computer is located in the left front area of the engine compartment behind the left front headlight. code P0720 stands for lack of or malfunction in the signal from the OSS Sensor.P0722 stands for no signal from the Output Speed Sensor Signal. Best to look at the Sensor output on a scan tool. it can often be that the Speed Sensor is wearing out, not uncommon. This sensor is located on top of the output tail shaft housing of the Transmission.