PGM-FI Main Relay Test
- Remove PGM-FI main relay. PGM-FI main relay is located under left side of instrument panel, near steering column.
- 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 retest.
- 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 retest.
- 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 retest. If continuity exists, relay is okay. If fuel pump does not operate, go to PGM-FI MAIN RELAY HARNESS CHECK .
Courtesy of AMERICAN HONDA MOTOR CO., INC.