Code Definition

P1445 — Purge Volume Control Valve

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Infiniti

About P1445

P1445 is a manufacturer-specific powertrain diagnostic trouble code recorded for Infiniti vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

P1445 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

DTC P1445 relates to the EVAP canister purge volume control valve on these Nissan and Infiniti vehicles, the same valve associated with P1444 but flagged for a different fault condition. This valve meters fuel vapour flow from the charcoal canister into the intake by varying the opening of a bypass passage under Engine Control Module (ECM) control. P1445 is generally set when the purge volume control valve does not respond as commanded, for example remaining closed or not delivering the expected purge flow, rather than the open circuit condition typically linked with the companion code. Becaus...

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