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Inspecting Fuel Pump

NOTE: For connector terminal ID, see CONNECTOR IDENTIFICATION. For wiring diagram, see WIRING DIAGRAMS - 3.3L article in ENGINE PERFORMANCE. After each repair, perform TEST VER-1  .
  1. Turn ignition off. Disconnect fuel pump relay. Turn ignition on. Using scan tool in voltmeter mode, check voltage on fuel pump relay connector terminal "A" (Dark Blue/White wire). If voltage is less than 10 volts, repair open Dark Blue/White wire. If voltage is more than 10 volts, go to next step.
  2. Using an external ohmmeter, check resistance between fuel pump relay terminals No. 85 and No. 86. See Figure . If resistance is more than 100 ohms, replace fuel pump relay. If resistance is less than 100 ohms, repair open Dark Blue/Yellow wire.
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