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PGM-FI Main Relay Test

  1. On Civic, PGM-FI main relay is located under right side of instrument panel. On all others, PGM-FI main relay is located under left side of instrument panel, near steering column.
  2. Remove PGM-FI main relay. Using a fused jumper wire, connect battery voltage to PGM-FI main relay terminal No. 2. Using another jumper wire, connect battery ground to relay terminal No. 1. See Fig 1 . Check for continuity between relay terminals No. 4 and No. 5. If continuity exists, go to next step. If continuity does not exist, replace PGM-FI main relay and re-test.
  3. Move battery voltage to PGM-FI main relay terminal No. 5. Move battery ground to relay terminal No. 3. Check for continuity between relay terminals No. 6 and No. 7. If continuity exists, go to next step. If continuity does not exist, replace PGM-FI main relay and re-test.
  4. Move battery voltage to PGM-FI main relay terminal No. 6. Move battery ground to relay terminal No. 1. Check for continuity between relay terminals No. 4 and No. 5. If continuity does not exist, replace relay and re-test. If continuity exists, relay is okay. If fuel pump does not operate after checking relay go to PGM-FI MAIN RELAY HARNESS CHECK  .
    Fig 1: Identifying PGM-FI Main Relay Terminals
    G98D07140Courtesy of AMERICAN HONDA MOTOR CO., INC.
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