Turn the ignition switch OFF. Remove the PGM-FI main relay 2. Connect the PGM-FI main relay 2 4P connector terminals No. 1 and No. 2 with a jumper wire. Wire side of female terminals Turn the ignition switch ON (II). Measure voltage between the fuel pump 5P connector terminal No. 5 and body ground within the first 2 seconds after the ignition switch was turned ON (II). FUEL PUMP 5P CONNECTOR Wire side of female terminals Is there battery voltage? YES - Replace the PGM-FI main relay 2. NO - Repair open in the wire between the PGM-FI main relay 2 and the fuel pump 5P connector.

Turn the ignition switch OFF. Check for continuity between the fuel pump 5P connector terminal No. 4 and body ground. FUEL PUMP 5P CONNECTOR Wire side of female terminals Is there continuity? YES - Replace the fuel pump. NO - Repair open in the wire between the fuel pump 5P connector and G551.