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Home >> Nissan-Datsun >> 2014 >> 370Z Base, 2D Convertible, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0137 To P0456 >> DTC P0138, P0158: Ho2S2 >> DTC Logic >> DTC Detection Logic >> Malfunction A

Malfunction A

To judge malfunctions of heated oxygen sensor 2, ECM monitors whether the voltage is unusually high during various driving conditions such as fuel cut.

Fig 1: Heated Oxygen Sensor 2 Voltage Signal (Malfunction A)
G04875072Courtesy of NISSAN NORTH AMERICA, INC.
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