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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 646 (Engine Control System (DTC/Circuit Diagnosis) (11 Of 17)) >> DTC/Circuit Diagnosis >> DTC P0643: Sensor Power Supply >> DTC Description >> Notes

DTC Description: Notes

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

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.