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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 493 (Engine Control System (VK56VD) DTC/Circuit Diagnosis (4 Of 6)) >> DTC/Circuit Diagnosis >> DTC P0444: EVAP Canister Purge Volume Control Solenoid Valve >> DTC Description >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD and 2019 Nissan NV2500 HD. 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

P0444

PURG VOLUME CONT/V

(EVAP canister purge volume control solenoid valve circuit open)

Diagnosis condition

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Signal (terminal)

EVAP canister purge volume control solenoid valve signal

Threshold

An excessively low voltage signal is sent to ECM through the valv

Diagnosis delay time

--

P0445

PURG VOLUME CONT/V

(EVAP canister purge volume control solenoid valve circuit shorted)

Diagnosis condition

--

Signal (terminal)

EVAP canister purge volume control solenoid valve signal

Threshold

An excessively high voltage signal is sent to ECM through the valve

Diagnosis delay time

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