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EC-316 < DTC/CIRCUIT DIAGNOSIS > [QR25DE] P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE 1. Turn ignition switch OFF. 2. Disconnect IPDM E/R harness connector. 3. Check the continuity between EVAP canister purge volume control solenoid valve harness connector and IPDM E/R harness connector. 4. Also check harness for short to ground. YES >> Perform the trouble diagnosis for power supply circuit. NO >> Repair or replace error-detected parts. 3. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE GROUND CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check the continuity between EVAP canister purge volume control solenoid valve harness connector and ECM harness connector. 4. Also check harness for short to power. YES >> GO TO 4. NO >> Repair or replace error-detected parts. 4. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR 1. Disconnect EVAP control system pressure sensor harness connector. 2. Check connectors for water. Is the inspection result normal? YES >> GO TO 5. NO >> Replace EVAP control system pressure sensor. Refer to FL-22, "Removal and Installation" . 5. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR Check the EVAP control system pressure sensor. Refer to EC-318, "Component Inspection" Is the inspection result normal? YES-1 >> With CONSULT: GO TO 6. YES-2 >> Without CONSULT: GO TO 7. NO >> Replace EVAP control system pressure sensor. Refer to FL-22, "Removal and Installation" . 6. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE With CONSULT 1. Turn ignition switch OFF. 2. Reconnect harness connectors disconnected. 3. Start engine. 4. Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode of “ENGINE” using CONSULT. Check that engine speed varies according to the valve opening. Is the inspection result normal? + − Continuity EVAP canister purge volume control solenoid valve IPDM E/R Connector Terminal Connector Terminal F16 2 F35 73 Existed + − Continuity EVAP canister purge volume control solenoid valve ECM Connector Terminal Connector Terminal F16 1 F51 17 Existed Water should not exist. |