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EC-246 < DTC/CIRCUIT DIAGNOSIS > [VQ40DE] P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE 1. Start engine and warm it up to normal operating temperature. Diagnosis Procedure INFOID:0000000006243939 1. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect EVAP canister purge volume control solenoid valve harness connector. 3. Turn ignition switch ON. 4. Check voltage between EVAP canister purge volume control solenoid valve terminal 2 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 • 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 1. 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. BBIA0550E Voltage: Battery voltage PBIB2605E Continuity should exist. 2011 Pathfinder |