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FUEL PUMP EC-561 < SERVICE INFORMATION > [VQ35DE] C D E F G H I J K L M A EC N P O • Harness for open or short between IPDM E/R and ECM >> Repair open circuit or short to ground or short to power in harness or connectors. 5. CHECK FUEL PUMP POWER SUPPLY CIRCUIT-III 1. Turn ignition switch OFF. 2. Reconnect all harness connectors disconnected. 3. Disconnect “fuel level sensor unit and fuel pump” harness con- 4. Turn ignition switch ON. 5. Check voltage between “fuel level sensor unit and fuel pump” OK or NG OK >> GO TO 9. NG >> GO TO 6. 6. CHECK 15A FUSE 1. Turn ignition switch OFF. 2. Disconnect 15A fuse. 3. Check 15A fuse. OK or NG OK >> GO TO 7. NG >> Replace fuse. 7. CHECK FUEL PUMP POWER SUPPLY CIRCUIT-IV 1. Disconnect IPDM E/R harness connector E8. 2. Check harness continuity between IPDM E/R terminal 39 and “fuel level sensor unit and fuel pump” termi- 3. Also check harness for short to ground and short to power. OK or NG OK >> GO TO 11. NG >> GO TO 8. 8. DETECT MALFUNCTIONING PART Check the following. >> Repair open circuit or short to ground or short to power in harness or connectors. PBIB1572E Voltage: Battery voltage should exist for 1 second PBIB0795E Continuity should exist. |