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Home >> Infiniti >> 2019 >> QX60 Luxe, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (11 Of 17) >> DTC/Circuit Diagnosis >> DTC P0643: Sensor Power Supply >> DTC Description >> Notes
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DTC Description: Notes

ECM supplies a voltage of 5 V to some of the sensors systematically divided into 2 groups, respectively. Accordingly, when a short circuit develops in a sensor power source, a malfunction may occur simultaneously in the sensors belonging to the same group as the short-circuited sensor.