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–
+
ELEC
FUEL PUMP SYSTEM
YES
NO
YES
NO
YES
NO
4. Fuel injection system relay
• Remove the fuel injection system relay
from the wire harness.
• Connect the pocket tester (
Ω
×
1) and bat-
tery (12 V) to the fuel injection system
relay terminal as shown.
• Check the fuel injection system relay of
continuity.
Positive battery lead
→
brown/red
1
Negative battery lead
→
blue/red
2
Positive tester probe
→
brown/black
3
Negative tester probe
→
red/blue
4
• Does the fuel injection system relay have
continuity between brown/black and red/
blue?
Replace the fuel
injection system
relay.
5. Fuel pump
• Check the condition of the fuel pump.
Refer to “CHECKING THE FUEL PUMP
BODY” in chapter 6.
Replace the fuel
pump assembly.
6. Wiring
• Check the entire fuel pump system wiring.
Refer to “CIRCUIT DIAGRAM”.
• Is the fuel pump system wiring properly
connected and without defects?
Replace the ECU.
Properly connect or
repair the fuel pump
system wiring.
