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EC-388 < COMPONENT DIAGNOSIS > [QR25DE] FUEL PUMP Is the inspection result normal? YES >> GO TO 13. NO >> GO TO 7. 6. DETECT MALFUNCTIONING PART Check the following. • Harness connectors E29, B10 • IPDM E/R connector E18 • Harness for open or short between IPDM E/R and condenser-1 >> Repair open circuit or short to power in harness or connectors. 7. CHECK CONDENSER GROUND CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect dropping resistor harness connector. 3. Check the continuity between condenser-1 harness connector and ground. 4. Also check harness for short to ground and short to power. YES >> GO TO 8. NO >> Repair open circuit or short to power in harness or connectors. 8. CHECK CONDENSER-1 EC-389, "Component Inspection (Condenser-1)" . Is the inspection result normal? YES >> GO TO 9. NO >> Replace condenser-1. 9. CHECK FUEL PUMP POWER SUPPLY CIRCUIT-III 1. Disconnect “fuel level sensor unit and fuel pump” harness connector. 2. Check the continuity between IPDM E/R harness connector and “fuel level sensor unit and fuel pump” and ground. Is the inspection result normal? YES >> GO TO 11. NO >> GO TO 10. 10. DETECT MALFUNCTIONING PART Check the following. • Harness connector E29, B10 • Harness for open or short between “fuel level sensor unit and fuel pump” and IPDM E/R • Harness for open or short between “fuel level sensor unit and fuel pump” and ground >> Repair open circuit or short to power in harness or connectors. 11. CHECK FUEL PUMP GROUND CIRCUIT 1. Check the continuity between “fuel level sensor unit and fuel pump” and ground. Condenser-1 Ground Continuity Connector Terminal B17 2 Ground Existed IPDM E/R Fuel level sensor unit and fuel pump Continuity Connector Terminal Connector Terminal E18 13 B42 1 Existed |