DTC Detection Logic

WARNING: This page is about a different car, the 2018 Nissan NV3500 HD, 2018 Nissan NV2500 HD, and 2018 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0444

PURG VOLUME CONT/V

(EVAP canister purge volume control solenoid valve circuit open)

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

Harness or connectors
(The solenoid valve circuit is open or shorted.)
EVAP canister purge volume control solenoid valve

P0445

PURG VOLUME CONT/V

(EVAP canister purge volume control solenoid valve circuit shorted)

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

Harness or connectors
(The solenoid valve circuit is shorted.)
EVAP canister purge volume control solenoid valve