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1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM ES–403 ES (a) Inspect the fuel pump resistor resistance. (1) Measure the resistance. Standard Resistance: 0.941 to 0.999 Ω at 20°C (68°F) NG OK (a) Check the harness and connector between the fuel pump relay and fuel pump resistor. R/B. (2) Disconnect the A13 fuel pump resistor connector. Standard Resistance (Check for open) Standard Resistance (Check for short) (4) Reinstall the fuel pump relay. (b) Check the harness and connector between the fuel pump resistor and fuel pump. Standard Resistance (Check for open) Standard Resistance (Check for short) (4) Reconnect the fuel pump resistor connector. 11 INSPECT FUEL PUMP RESISTOR (RESISTANCE) 2 1 Ohmmeter A126380E01 REPLACE FUEL PUMP RESISTOR (See page ) 12 CHECK HARNESS AND CONNECTOR (FUEL PUMP RELAY - FUEL PUMP RESISTOR - 1 4 5 3 1 2 Fuel Pump Resistor Connector Fuel Pump Connector Fuel Pump Relay Front View Front View Wire Harness Side: Wire Harness Side: Engine Room R/B: A13 L5 A133466E01 Tester Connections Specified Conditions Fuel pump relay (5) - Fuel pump resistor (A13-1) Below 1 Ω Tester Connections Specified Conditions Fuel pump relay (5) or Fuel pump resistor (A13-1) - Body ground 10 k Ω or higher Tester Connections Specified Conditions Fuel pump resistor (A13-2) - Fuel pump (L5-4) Below 1 Ω Tester Connections Specified Conditions Fuel pump resistor (A13-2) or Fuel pump (L5-4) - Body ground 10 k Ω or higher |