Possible Causes
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
GOOD TRIP EQUAL TO ZERO
POWER STEERING PRESSURE SWITCH
(K66) P/S SWITCH SIGNAL CIRCUIT OPEN
(K66) P/S SWITCH SIGNAL CIRCUIT SHORTED TO GROUND
(Z939) GROUND CIRCUIT OPEN
PCM