22. FUEL INJECTION SYSTEM MXU 500i
FUEL PUMP
INSPECTIION
Put the side stand up and the engine stop
switch is at "RUN"
Disconnect the fuel pump/fuel unit
connector. F
Connect the multimeter (+) probe to the Red
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
voltage for a few seconds. E
If there is still battery voltage, replace the
fuel pump.
If there is not any battery voltage, inspect
the following:
Fuse
Fuel pump relay
ECU
Measure the resistance between the Red and
Black 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 red
and blue terminals of the fuel pump side
connector.
Standard (at 20°C/68°F):
Float at full position About101
Float at empty position About 3
22-16
4.7 / 5