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EC-758 < DTC/CIRCUIT DIAGNOSIS > [VK56DE] P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE 4. Check voltage between EVAP canister purge volume control solenoid valve terminal 1 and ground with CONSULT-III or tester. OK or NG OK >> GO TO 3. NG >> GO TO 2. 2. DETECT MALFUNCTIONING PART Check the following. • Harness connectors E2, F32 • IPDM E/R harness connector E119 • Harness for open or short between EVAP canister purge volume control solenoid valve and IPDM E/R • Harness for open or short between EVAP canister purge volume control solenoid valve and ECM >> Repair harness or connectors. 3. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 2. Disconnect ECM harness connector. 3. Check harness continuity between ECM terminal 45 and EVAP canister purge volume control solenoid valve terminal 2. Refer to Wiring Diagram. 4. Also check harness for short to ground and short to power. OK >> GO TO 4. NG >> Repair open circuit or short to ground or short to power in harness or connectors. 4. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR 1. Disconnect EVAP control system pressure sensor harness connector. 2. Check connectors for water. OK or NG OK >> GO TO 5. NG >> Replace EVAP control system pressure sensor. Refer to FL-16, "Removal and Installation" . 5. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR EC-775, "Component Inspection" OK or NG OK (With CONSULT-III)>>GO TO 6. OK (Without CONSULT-III)>>GO TO 7. NG >> Replace EVAP control system pressure sensor. Refer to FL-16, "Removal and Installation" . 6. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE With CONSULT-III 1. Turn ignition switch OFF. 2. Reconnect all harness connectors disconnected. 3. Start engine. 4. Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode with CONSULT-III. 5. Check that engine speed varies according to the valve opening. Voltage: Battery voltage PBIB2245E Continuity should exist. Water should not exist. 2011 Pathfinder |