18. LIGHTS/SWITCHES MXU 500EXi/MXU500i FUEL PUMP UNIT Screw Hose quick band REMOVAL Disconnect the connector and fuel band from the fuel pump. Remove the six screws onto the fuel pump. Remove the fuel pump and O-ring. INSPECTION Put the side stand up and the engine stop switch is at "RUN" Disconnect the fuel pump/fuel unit Fuel Pump Connector connector. Connect the multimeter (+) probe to the Gray terminal and the multi-meter (-) probe to the Gray terminal. Turn the ignition switch to "ON" and measure the voltage between the terminals. It should be shown the current battery F voltage for a few seconds. If there is still battery voltage, replace the fuel pump. If there is not any battery voltage, inspect the following: Fuse Fuel pump relay E ECU Measure the resistance between the both Gray.terminals of the fuel pump side connector. Standard (at 20°C/68°F): About 10.7 Fuel level sensor inspection Measure the resistance between the Gay and Gray terminals of fuel pump side connector. Standard (at 20°C/68°F): Float at full position About101 Float at empty position About 3 18-10