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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 112 (Engine Controls Self-Diagnostics - Pathfinder) >> Diagnostic Tests >> DTC P1448: EVAP Canister Vent Control Valve - Stuck Open >> DTC Confirmation Test (Using CONSULT-II)

DTC Confirmation Test (Using CONSULT-II)

WARNING: This page is about a different car, the 2003 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Perform DTC WORK SUPPORT when fuel level is between 1/4 and 3/4 and vehicle is placed on a level surface. Perform test when ambient temperature is 32-86°F (0-30°C). If DTC confirmation procedure had been previously run, turn ignition off and wait at least 10 seconds before continuing.
  1. Open hood. Turn ignition on. Turn ignition off and wait at least 10 seconds. Turn ignition on and select DATA MONITOR mode with CONSULT-II.
  2. Ensure the following conditions are met:
    • COOLAN TEMP/S: 32-158°F (0-70°C)
    • INT/A TEMP SE: 32-86°F (0-30°C)
  3. Select EVAP SML LEAK P0442/P1442 of EVAPORATIVE SYSTEM in DTC WORK SUPPORT mode with CONSULT- II.
  4. Follow instructions displayed on CONSULT-II. If engine speed cannot be maintained within range displayed on CONSULT-II screen, perform BASIC INSPECTION under IDLE SPEED, IGNITION TIMING & IDLE MIXTURE RATIO ADJUSTMENT in ON-VEHICLE ADJUSTMENTS article.
  5. If OK is displayed, system is okay at this time. If NG is displayed, go to next step.
    6. NOTE: Ensure EVAP hoses are connected to EVAP canister purge volume control valve properly.
  6. Stop engine and wait at least 10 seconds. Turn ignition on. Disconnect hose from water separator. See Figure. Select VENT CONTROL/V of ACTIVE TEST mode with CONSULT-II.
  7. Touch ON and OFF alternately. When VENT CONTROL/V is ON, air should flow between ports "A" and "B". See Figure. When VENT CONTROL/V is OFF, air should not flow between ports "A" and "B".
  8. If operation is not as specified, go to DIAGNOSTIC PROCEDURE . If operation is as specified, perform DIAGNOSTIC PROCEDURE for DTC P0442 .
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