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FUEL PUMP CIRCUIT EC-669 C D E F G H I J K L M A EC 3. DETECT MALFUNCTIONING PART Check the following. ● Fuse block (J/B) No. 1 connector M1 ● Fuse block (J/B) No. 2 connectors M143, M145 ● Joint connector-19 ● 15A fuses ● Harness for open or short between fuse and fuel pump relay >> Repair harness or connectors. 4. CHECK FUEL PUMP POWER SUPPLY AND GROUND CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch “OFF”. 2. Disconnect fuel level sensor unit and fuel pump harness con- 3. Disconnect dropping resistor harness connector. 4. Check harness continuity between 5. Also check harness for short to ground and short to power. OK or NG OK >> GO TO 6. NG >> GO TO 5. PBIB1249E Continuity should exist. PBIB0032E |