The transmission oil pressure sensor on a 2003 Jeep Liberty is
not a readily accessible, standalone sensor like an engine oil pressure sensor. Instead, the transmission's pressure is monitored indirectly through the Transmission Control Module (TCM). The TCM uses various inputs (like sensor data for speed, throttle position, etc.) to manage shift pressures and doesn't rely on a single pressure sensor in the way an engine does.
Therefore, there isn't a single "transmission oil pressure sensor" you can locate and replace. If you have a transmission problem, diagnosis typically involves checking the TCM for fault codes using a scan tool. A mechanic will then use this information, along with other diagnostic procedures, to determine the cause of any transmission issues.
