DTC P1273: A/F Sensor 1: Wiring Diagram

Fig 1: Wiring Diagram - Air Fuel Ratio Sensor 1

Courtesy of NISSAN MOTOR CO., U.S.A.

Specification data are reference values and are measured between each terminal and ground.

CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

Fig 2: Air Fuel Ratio Sensor 1 Terminals Voltage Conditions Chart

Courtesy of NISSAN MOTOR CO., U.S.A.