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Checking Fuel Pump Operation (Without Scan Tool) - S2000

  1. Remove rear tray. 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 (Yellow/Green wire) and No. 5 (Black/Yellow 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 (Yellow/Green 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.
PGM-FI MAIN RELAY LOCATION

Application Color Location
Accord, Odyssey & Prelude Brown Under Left Side Of Instrument Panel, To Left Of Steering Column
Civic
PGM-FI Main Relay No. 1 Blue Behind Glove Box
PGM-FI Main Relay No. 2 Blue Behind Glove Box
CR-V & S2000 Brown Under Right Side Of Instrument Panel, Above Kick Panel
Insight (1) Blue Under Center Of Dash
(1) A Blue fuel cut relay is also used. It is located in front of underhood fuse/relay box at left front shock tower.
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