S2000 L4-2.2L (2004)
Main Relay (Computer/Fuel System): Testing and Inspection
PGM-FI Main Relay Circuit Troubleshooting
1. Turn the ignition switch OFF, then disconnect the PGM-FI main relay 7P connector.
2. Check for continuity between body ground and PGM-FI main relay 7P connector terminal No. 3.
Is there continuity?
YES - Go to step 3.
NO - Repair open in the wire between the PGM-FI main relay and G101.
3. Measure voltage between body ground and PGM-FI main relay 7P connector terminal No. 7.
Is there battery voltage?
YES - Go to step 5.
NO - Go to step 4.
4. Check for a blown ACGS (15 A) fuse in the under-hood fuse/relay box.
Is the fuse blown?
YES - Repair the short in the wire between the PGM-FI main relay and the ACGS (15 A) fuse.
NO - Repair the open in the wire between the PGM-FI main relay and the ACGS (15 A)fuse.