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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1179 (Engine Control System - DTCS P0181 To P0550 (VK56DE)) >> DTC P0444, P0445: EVAP Canister Purge Volume Control Solenoid Valve >> On Board Diagnosis Logic

On Board Diagnosis Logic

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0444
0444		 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
0445		 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
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