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DTC P0139: Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Slow Response
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Notes
DTC P0139: Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Slow Response: Notes
Fig 1: Secondary Heated Oxygen Sensor 2 Heater Circuit Diagram
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 2: Secondary Heated Oxygen Sensor Output Voltage - Graph
Courtesy of AMERICAN HONDA MOTOR CO., INC.