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FUEL PUMP SYSTEM ELEC
5. Fuel pump relay
Disconnect the relay unit from the coupler.
Connect the pocket tester (Ω 1) and battery
(12 V) to the relay unit ferminals as shown.
Battery positive terminal red/black
Battery negative terminal blue/red
Tester positive probe red/black
Tester negative probe blue/black
1
1
2
3
Does the fuel pump relay have continuity be-
tween red/black and blue /black?
YES NO
Replace the relay unit
6. Fuel pump resistance
Disconnect the fuel pump coupler from the
wire harness.
Connect the pocket tester (Ω 1) to the fuel
pump coupler (fuel pump side) as shown.
1
2
EB808400
Tester positive probe black/blue
Tester negative probe black
YES NO
Relpace the fuel pump.
Measure the fuel pump resistance.
Fuel pump resistance
4 10 Ω at 20C
Is the fuel pump OK?
7. Wiring
Check the entire fuel pump system’s wiring.
Refer to “CIRCUIT DIAGRAM”.
Is the fuel pump system’s wiring properly con-
nected and without defects?
EB808401
YES NO
Prperly connect or re-
pair the fuel pump
system’s wiring.
Replace the ignitor
unit.