Ford P1148 OBD-II Trouble Code Definition: P1148 Closed Loop Control Function Bank 1 P1148 Ford OBD-II Trouble CodeDescription: When is the obd code mean? 4 Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1148 OBD Code Description Closed Loop Control Function Bank 1 is one of the definitions for the P1148; however your […]