Fuel Pump Relay Circuit

1. Connect EFI. wiring harness connector electronic control unit.
2. Place ignition switch in the On position and listen for fuel pump operation.
3. If fuel pump does not operate, disconnect EFI. wire connector and connect ohmmeter positive lead to terminal 13 and negative lead to body ground.
4. Any reading besides zero ohms or infinite is considered satisfactory.
5. If reading is not as specified, check wiring circuit and fuel pump. If fuel pump and wiring circuit are satisfactory relace fuel pump relay.