Ford P0152 OBD-II Trouble Code Definition: P0152 HO2S21 Sensor Circuit High Voltage P0152 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0152 O2 Sensor Circuit High Voltage What does the code mean? OBD-ii Code P0152 definition: The o2 (oxygen) sensors basically measure oxygen content in the exhaust. The PCM (powertrain control module) then uses this information to […]