Ford P1152 OBD-II Trouble Code Definition:
P1152 Lack Of HO2S21 Switch – Sensor Indicates Rich
P1152 Ford OBD-II Trouble CodeDescription:
Lack Of HO2S21 Switch – Sensor Indicates Rich is one of the definitions for the P1152; however your vehicle’s manufacturer may have a different definition for the P1152 code. Please check below for your specific make.