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EC-304 < DTC/CIRCUIT DIAGNOSIS > [VQ35DE] P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR Is the inspection result normal? YES >> GO TO 6. NO >> GO TO 5. 5. DETECT MALFUNCTIONING PART Check the following. >> Repair open circuit. 6. CHECK SENSOR POWER SUPPLY CIRCUIT Check harness for short to power and short to ground, between the following terminals. Is the inspection result normal? YES >> GO TO 7. NO >> Repair short to ground or short to power in harness or connectors. 7. CHECK COMPONENTS Check the following. EC-257, "Component Inspection" • Refrigerant pressure sensor (Refer to .) Is the inspection result normal? YES >> GO TO 8. NO >> Replace malfunctioning components. 8. CHECK APP SENSOR EC-409, "Component Inspection" Is the inspection result normal? YES >> GO TO 15. NO >> GO TO 9. 9. REPLACE ACCELERATOR PEDAL ASSEMBLY 1. Replace accelerator pedal assembly. 2. EC-409, "Special Repair Requirement" >> INSPECTION END 10. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check the continuity between EVAP control system pressure sensor harness connector and ECM har- EVAP control system pressure sensor ECM Continuity Connector Terminal Connector Terminal B17 3 E16 91 Existed ECM Sensor Connector Terminal Name Connector Terminal F8 72 Refrigerant pressure sensor E300 1 76 CKP sensor (POS) F20 1 E16 87 APP sensor E110 5 91 EVAP control system pressure sensor B17 3 |