Fuel Pump Resistor - Acura 3.5 RL Manual

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 2P connector
terminal No. 2 and body
ground when the ignition
switch is first turned ON (II).
Is there battery voltage for
2 seconds?
YES
Does the engine start?
NO
Check for an open in the wire:
1. Turn the ignition switch OFF.
2. Disconnect the fuel unit sub-
harness connector.
3. Measure voltage between the
fuel unit sub-harness connec-
tor terminal No. 7 and body
ground when the ignition
switch is first turned ON (II).
Is there battery voltage for
2 seconds?
NO
Repair open in wire between the
fuel pump resistor and the fuel
pump.
NO
Inspect the PGM-FI main relay
(see page 11-146).
YES
Replace the fuel pump resistor.
YES
Inspect the fuel pump (see page
11-142).
FUEL PUMP RESISTOR 2P CONNECTOR
(C704)
Wire side of female terminals
JUMPER WIRE
FUEL UNIT SUB-HARNESS
CONNECTOR (C669)
(BLK/YEL)
Terminal side of male terminals