nsxb11141a.pdf

Fuel Pump Resistor
Troubleshooting Flowchart
— Engine will not start.
— Inspection of fuel pump resis-
tor.
Check the operation of the PGM-
FI main relay:
1. Disconnect the fuel pump
resistor 2P connector.
2. Measure voltage between fuel
pump resistor connector ter-
minal No. 2 and body ground
when the ignition switch is
first turned ON (II).
Is there battery voltage?
(for 2 seconds)
Does the engine start?
Check for an open in the wire:
1. Turn the ignition switch OFF.
2. Disconnect the C486 (6P) con-
nector (located behind the
seat back panels).
3. Measure voltage between the
C486 (6P) connector terminal
No. 3 and body ground when
the ignition switch is first
turned ON.
Is there battery voltage?
(for 2 seconds)
FUEL PUMP RESISTOR 2P CONNECTOR
WIRE SIDE OF FEMALE TERMINALS
Inspect the PGM-FI main relay
(see page 11-143).
Replace the fuel pump resistor.
C489 CONNECTOR (6P)
Inspect the fuel pump (see page
11-142).
TERMINAL SIDE OF MALE TERMINALS
JUMPER WIRE
Check for an open in the fuel
pump resistor:
1. Turn the ignition switch OFF.
2. Connect fuel pump resistor
connector terminals No. 1 and
No. 2 with a jumper wire.
3. Turn the ignition switch to
START position.
Repair open in BLK/RED wire
between the fuel pump resistor
and the fuel pump.