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NEXT 13. REPLACE FUEL PUMP ECU (a) Replace the fuel pump ECU
. 14. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED (a) Check the fuel pump operation. OK: Malfunction has been repaired successfully. NG REPLACE ECM OK END 15. CHECK HARNESS AND CONNECTOR (CIRCUIT OPENING RELAY - FUEL PUMP (a) Remove the circuit opening relay (C/OPN) from the engine room relay block
. (b) Remove the fuel pump relay (F/PMP) from the engine room relay block
. (c) Remove the IGN fuse from the engine room relay block. (d) Measure the resistance according to the value(s) in the table below. Standard resistance: TESTER CONNECTION CONDITION SPECIFIED CONDITION C/OPN relay (1) - IGN fuse (2) Always Below 1 Ω C/OPN relay (3) - F/PMP relay (3) Always Below 1 Ω C/OPN relay (1) or IGN fuse (2) - Body ground Always 10 kΩ or more C/OPN relay (3) or F/PMP relay (3) - Body ground Always 10 kΩ or more NG REPAIR OR REPLACE HARNESS OR CONNECTOR 3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: Fuel Pump C... |