nsxb11142a.pdf

Fuel Supply System
Fuel Pump
Testing
Do not smoke during the test. Keep open
flame away from your work area.
If you suspect a problem with the fuel pump, check that
the fuel pump actually runs. When it is ON, you will hear
some noise if you hold your ear to the fuel fill port with
the fuel fill cap removed. The fuel pump should run for
two seconds when the ignition switch is first turned on.
If the fuel pump does not make noise, check as follows:
1. Remove the bulkhead panels.
2. Disconnect the C486 (6P) connector (located behind
the bulkhead panels).
CAUTION: Be sure to turn the ignition switch OFF
before disconnecting the wires.
3. Disconnect the PGM-FI main relay connector and
connect the No. 2 terminal and No. 5 terminal* with
a jumper wire. *: 8P connector
PGM-FI MAIN RELAY CONNECTORS
WIRE SIDE OF FEMALE TERMINALS
4. Check that battery voltage is available at the fuel
pump connector when the ignition switch is turned
ON (positive probe to the No. 3 terminal, negative
probe to No. 6 terminal wire).
C486 CONNECTOR (6P)
(BLK)
(BLK/YEL)
TERMINAL
SIDE OF
MALE TERMINALS
If battery voltage is available, replace the fuel
pump.
If there is no voltage, check the fuel pump
ground and wire harness (see page 11-144).
Replacement
Do not smoke while working on fuel sys-
tem. Keep open flames away from your work area.
1. Remove the fuel tank (see page 11-147).
2. Disconnect the connector from the fuel pump.
3. Remove the fuel pump mounting nuts.
4. Remove the fuel pump from the fuel tank.
27 N-m (2.8 kgf-m, 21 Ibf-ft)
5.9 N-m (0.6 kgf-m,
4.3 Ibf-ft)
FUEL PUMP
FUEL PUMP
BRACKET