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3-70 FUEL SYSTEM (DFI)
Fuel Pump (Service Code 45)
Operating Voltage Inspection
NOTE
○
Be sure the battery is fully charged.
•
Turn the ignition switch OFF.
•
Remove the seat (see Frame chapter).
•
Connect the hand tester (25 V DC) to the fuel pump con-
nector [A] with needle adapter set.
Special Tools - Hand Tester: 57001-1394
Needle Adapter Set: 57001–1457
○
Measure the operating voltage with the engine stopped,
and with the connector joined.
•
Turn the ignition switch ON.
○
The tester needle should indicate battery voltage for 3
seconds, and then 0 V.
Pump Operating Voltage at Pump
Connections to Pump Connectors
Tester (+)
→
Y/R Lead
Tester (–)
→
BK/W Lead
Operating Voltage at Pump Connector
Standard:
Battery Voltage (12.6 V or more) for 3
seconds, and then 0 V.
If the reading stays on battery voltage, and never shows
0 V. Check the ECU and fuel pump relay.
If the voltage is in specification, but the pump doesn’t
work, replace the pump.
If there is still no battery voltage, check the pump relay
(see this chapter).