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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 69 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0447: EVAP Canister Vent Control Valve >> Diagnostic Procedure (2.4L)

Diagnostic Procedure (2.4L)

WARNING: This page is about a different car, the 2002 Nissan Xterra and 2002 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.
  1. If using CONSULT-II, go to next step. If not using CONSULT-II, go to step  3 .
  2. Turn ignition off then on. Select VENT CONTROL/V in ACTIVE TEST mode with CONSULT-II. Press ON/OFF. EVAP-CVCV should click. For location, see Figure . If EVAP-CVCV clicks, go to step  7 . If EVAP-CVCV does not click, go to next step.
  3. Turn ignition off. Disconnect EVAP-CVCV harness connector. See Figure . Turn ignition on. Measure voltage between ground and EVAP-CVCV harness connector terminal No. 1 (White/Green wire). If battery voltage exists, go to step  5 . If battery voltage does not exist, go to next step.
  4. Check the following:
    • Check fuse No. 13 (10-amp) located in fuse block under left side of instrument panel. See Figure .
    • Check for poor connection at fuse block connector E49 terminal 3R (White/Green wire). See Figure .
    • Check for poor connection at Super Multiple Junction (SMJ) connector M65 terminal 18B (White/Green wire). See Figure . SMJ connector M65 is located under right side of instrument panel. See Figure or Figure .
    • Check for poor connection at White, 18-pin connector B101 (on Xterra) or connector C1 (on Frontier) terminal No. 5 (White/Green wire). See Figure . Connector B101 or C1 is connected to connector M67. Connector M67 is located at base of right "A" pillar. See Figure or Figure .
    • Check for open or short between EVAP-CVCV and fuse.
    • On Xterra, check for poor connection at Gray, 8-pin connector B113 terminal No. 5 (White/Green wire). See Figure . Connector B113 is located near EVAP-CVCV.

    On all models, repair as necessary.

  5. Turn ignition off. Disconnect ECM harness connector. See Figure or Figure . Check continuity of Red/Green wire between EVAP-CVCV harness connector terminal No. 2 and ECM harness connector terminal No. 108. See Figure . Also, check circuit for short to ground and short to voltage. If problem is found, go to next step. If problem is not found, go to step  7 .
  6. Check the following:
    • Check for poor connection at White, 20-pin connector M81 terminal No. 6 (Yellow/Black wire). See Figure . Connector M81 is located behind right side of instrument panel. See Figure or Figure .
    • Check for open or short between EVAP-CVCV and ECM.
    • On Frontier, check for poor connection at White, 18-pin connector C1 terminal No. 7 (Red/Green wire). See Figure . Connector C1 is connected to connector M67. Connector M67 is located at base of right "A" pillar. See Figure .
    • On Xterra, check for poor connection at White, 18-pin connector B101 terminal No. 1 (Red/Green wire). See Figure . Connector B101 is connected to connector M67. Connector M67 is located at base of right "A" pillar. See Figure .
    • On Xterra, check for poor connection at Gray, 8-pin connector B113 terminal No. 1 (Red/Green wire). See Figure . Connector B113 is located near EVAP-CVCV.

    On all models, repair as necessary.

  7. Remove EVAP-CVCV. Check for rust in port "B". See Figure . If rust exists, replace EVAP-CVCV. If rust does not exist, go to next step.
  8. If using CONSULT-II, go to next step. If using generic scan tool, go to step  10 .
  9. Reconnect all harness connectors. Turn ignition on. Perform VENT CONTROL/V in ACTIVE TEST mode with CONSULT-II. When VENT CONTROL/V is ON, air should not flow between ports "A" and "B". When VENT CONTROL/V is OFF, air should flow between ports "A" and "B". It should take less than one second for valve to open or close. If operation is as specified, go to step  11 . If operation is not as specified, clean EVAP-CVCV with compressed air, and retest. If operation is still not as specified, replace EVAP-CVCV.
  10. Using jumper wires, apply battery voltage to EVAP-CVCV terminals. See Figure . Air should not flow between ports "A" and "B". Remove jumper wires. Air should flow. EVAP-CVCV should switch in less than one second. If operation is as specified, go to next step. If operation is not as specified, clean EVAP-CVCV with compressed air, and retest. If operation is still not as specified, replace EVAP-CVCV.
  11. No problem is indicated at this time. Problem may be intermittent. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES article.
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