Ford P0137 OBD-II Trouble Code Definition: P0137 HO2S Circuit Low Voltage Bank 1 Sensor 2 P0137 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0137 O2 Sensor Circuit Low Voltage What does the code mean? OBD-ii Code P0137 definition: Essentially the same as P0136, P0137 definition:the second oxygen sensor on Bank 1. P0137 means the O2 oxygen […]