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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 360 (Engine Control System (DTC/Circuit Diagnosis) (11 Of 17)) >> DTC/Circuit Diagnosis >> DTC P0643: Sensor Power Supply >> DTC Description >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0643

SENSOR POWER/CIRC

(Sensor power supply 1 circuit short)

Diagnosis condition

Engine running at idle

Signal (terminal)

Sensor power supply 1 signal

Threshold

A voltage of power source for sensor is excessively low or high

Diagnosis delay time

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