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FL -210 FUEL SYSTEM 1) IG KEY "OFF", ENGINE "OFF". 2) Disconnect fuel pump relay. 3) IG KEY "ON". 4) Measure the voltage of fuel pump relay connector terminal 3. Specification : 3.2V~3.7V 5) Is the measured voltage within the specification? YES ▶ Go to "Component Inspection". NO ▶ When no value is detected : Go to "2. Check open in control circuit". ▶ When high voltage is detected : Repair short to battery in signal circuit and go to "Verification of Vehicle Repair". 2. Check open in control circuit 1) IG KEY "OFF", ENGINE "OFF". 2) Disconnect fuel pump relay and ECM connector. 3) Check continuity between fuel pump relay connector terminal 3 and ECM connector (C230-A) terminal 45. specification : Continuity ( below 1.0 Ω ) 4) Is the measured resistance within the specification? YES ▶ Repair short to ground and go to "Verification of Vehicle Repair". NO ▶ Repair open in control circuit and go to "Verification of Vehicle Repair". COMPONENT INSPECTION ECB31A37 1. Check fuel pump relay component coil resistance 1) IG KEY "OFF", ENGINE "OFF". 2) Disconnect glow relay. 3) Measure the resistance of glow relay component coil. Specification : 95±5 Ω (20 ℃ ) |