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Home >> Infiniti >> 2008 >> M45 x >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (VK45DE) - DTCS P0460 Through P1421 >> DTC P0603 ECM Power Supply >> Component Description
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Component Description

Battery voltage is supplied to the ECM even when the ignition switch is turned OFF for the ECM memory function of the DTC memory, the air-fuel ratio feedback compensation value memory, the idle air volume learning value memory, etc.

Fig 1: Identifying ECM
G04899963Courtesy of NISSAN MOTOR CO., U.S.A.
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