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FUEL PUMP EC-1351 < DTC/CIRCUIT DIAGNOSIS > [VQ40DE FOR MEXICO] C D E F G H I J K L M A EC N P O 4. Check voltage between ECM terminal 113 and ground with CONSULT or tester. OK or NG OK >> GO TO 5. NG >> GO TO 3. 3. CHECK FUEL PUMP POWER SUPPLY CIRCUIT-II Check voltage between IPDM E/R terminal 46 and ground with CONSULT or tester. OK or NG OK >> GO TO 4. NG >> GO TO 12. 4. DETECT MALFUNCTIONING PART Check harness for open or short between IPDM E/R and ECM >> Repair 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- nector. 4. Turn ignition switch ON. 5. Check voltage between “fuel level sensor unit and fuel pump” terminal 1 and ground with CONSULT or tester. 6. Also check harness for short to ground and short to power. OK >> GO TO 9. NG >> GO TO 6. 6. CHECK 15A FUSE 1. Turn ignition switch OFF. Voltage: Battery voltage PBIB1187E Voltage: Battery voltage PBIB2656E BBIA0545E Voltage: Battery voltage should exist for 1 sec- PBIB0795E |