Fuel Pump Test - Honda 2004 Odyssey Service Manual

Fuel Supply System

Fuel Pump Test

If you suspect a problem with the fuel pump, check that
the fuel pump actually runs; when it is on, you will hear
fuel flow if you listen to the injector rails underneath the
intake manifold cover. The fuel pump should run for 2
seconds when the ignition switch is first turned ON (II).
If the fuel pump does not make noise, check as follows:
1. Remove the rear seats and carpet.
2. Remove the access panel (A) from the floor.
3. Turn the ignition switch OFF, then disconnect the
fuel pump 5P connector.
4. Connect PGM-FI main relay 7P connector terminals
No. 4 and No. 5 with a jumper wire.
PGM-FI MAIN RELAY 7P CONNECTOR
FUEL PUMP
(BLK/YEL)
JUMPER WIRE
Wire side of female terminals
11-218
A
IGN 1
(RED/WHT)
5. Turn the ignition switch ON (II).
6. Check that battery voltage is available between fuel
pump 5P connector terminals No. 4 and 5.
• If battery voltage is available, check the fuel
pump ground. If the ground is OK, replace the
fuel pump (see page 11-230).
• If there is no voltage, check the wire harness (see
page 11-208).
FUEL PUMP 5P CONNECTOR
GND (BLK)
Wire side of female terminals
FUEL PUMP
(BLK/YEL)