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FUEL PUMP SYSTEM
ELEC
YES NO
5. Starting circuit cut-off relay
SDisconnect the starting circuit cut-off relay
coupler from the wire harness.
SConnect the pocket tester (Ω 1) and bat-
tery (12V) to the starting circuit cut-off relay
coupler as shown.
Replace the starting
circuit cut-off relay.
Positive battery lead ! red/black
Negative battery lead ! light green
1
2
Positive tester probe ! red
Negative tester probe ! red/blue
3
4
SDoes the starting circuit cut-off relay have
continuity between red and red/blue?
YES NO
6. Fuel pump resistance
SDisconnect the fuel pump coupler from the
wire harness.
SConnect the pocket tester (Ω 1) to the fuel
pump coupler as shown.
Properly connect or
repair the fuel sys-
tem’s wiring.
1
2
Positive tester probe ! red/blue
Negative tester probe ! black
EAS00817
YES NO
Fuel pump resistance
0.2 X 3.0 Ω at 20_C (68_F)
SIs the fuel pump OK?
Replace the fuel
pump.
SMeasure the fuel pump resistance.
7. Wiring
SCheck the entire fuel pump system’s wiring.
Refer to “CIRCUIT DIAGRAM”.
SIs the fuel system’s wiring properly con-
nected and without defects?
EAS00818
Replace the ECU.
EAS00759