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P1446 Nissan Code - EVAP Canister Vent Control Valve Close

- Code Popularity: 113,212 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1446 Nissan?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty EVAP Pressure Sensor
  • EVAP Pressure Sensor harness is open or shorted
  • EVAP Pressure Sensor circuit poor electrical connection
  • Blocked rubber tube to EVAP canister vent control valve
  • EVAP Water separator
  • EVAP canister is saturated with water
  • Faulty EVAP canister vent control valve
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How to Fix the DTC P1446 Nissan?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

There is a factory service bulletin for the following Nissan Models:
2005 Nissan Pathfinder
2006 Nissan Pathfinder
2007 Nissan Pathfinder
2005-2007 Nissan Pathfinder Service Bulletin OBDII Code P1446






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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1446 Nissan code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

When is the Code Detected?

EVAP canister vent control valve remains closed under specified driving conditions.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P1446 Nissan Description

The EVAP canister vent control valve is located on the EVAP canister and is used to seal the canister vent.
This solenoid valve responds to signals from the Engine Control Module (ECM). When the ECM sends an ON signal, the coil in the solenoid valve is energized. A plunger will then move to seal the canister vent. The ability to seal the vent is necessary for the on board diagnosis of other evaporative emission control system components.
This solenoid valve is used only for diagnosis, and usually, remains opened. When the vent is closed, under normal purge conditions, the evaporative emission control system is depressurized and allows EVAP Control System (Small Leak) diagnosis.

OBDII Code P1446 Nissan - EVAP Canister Vent Control Valve Close - AutoCodes.com
P1446 Nissan Code - EVAP Canister Vent Control Valve Close

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Code P1446 Nissan comments

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