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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Control System - 3.5L) >> DTC P0037, P0038, P0057, P0058: Ho2S2 Heater >> Description >> System Description

System Description

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Fig 1: System Description Chart
G02885257Courtesy of NISSAN MOTOR CO., U.S.A.

The ECM performs ON/OFF control of the heated oxygen sensor 2 heater corresponding to the engine speed, amount of intake air and engine coolant temperature.