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Checking Fuel Pump Operation (Without Scan Tool) - Odyssey

  1. Remove rear seats and carpet. Remove access panel from floor. Turn ignition off and disconnect fuel pump 5-pin electrical connector. Locate PGM-FI main relay. See PGM-FI MAIN RELAY LOCATION  table. Using a jumper wire, connect PGM-FI main relay terminals No. 4 (Black/Yellow wire) and No. 5 (Red/White wire) together. See WIRING DIAGRAMS article.
  2. Turn ignition on. Using DVOM, measure voltage between body ground and fuel pump 5-pin electrical connector terminal No. 5 (Black/Yellow wire). If battery voltage is available, check fuel pump ground circuit. If ground circuit is okay, replace fuel pump. If battery voltage is not available, check wiring harness between PGM-FI main relay and fuel pump harness connector.
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