| 1. | Turn the ignition switch OFF. |
| 2. | Remove the driver's side under cover. |
| 3. | Remove the relay holder (A) from the under-dash fuse/relay box, and remove the PGM-FI main relay 2 (blue) (B) from the relay holder (A), after reinstall the relay holder (A) to the under-dash fuse/relay box.
|
| 4. | Turn the ignition switch ON (II). |
| 5. | Measure voltage between the PGM-FI main relay 2 5P connector terminal No. 3 and body ground.
Is there battery voltage? YES - Go to 6. NO - Repair open in the wire between the PGM-FI main relay 1 and the PGM-FI main relay 2.n |
| 6. | Measure voltage between the PGM-FI main relay 2 5P connector terminal No. 1 and body ground.
Is there battery voltage? YES - Go to 7. NO - Repair open in the wire between the under-dash fuse/relay box and PGM-FI main relay 2.n |
| 7. | Turn the ignition switch OFF. |
| 8. | Connect PGM-FI main relay 2 5P connector terminal No. 5 to body ground with a jumper wire.
|
| 9. | Wait 10 seconds. |
| 10. | Connect the ECM test harness and test pin box between the ECM and connectors. |
| 11. | Check for continuity between test pin box terminal No. 89 and body ground. Is there continuity? YES - Go to 12. NO - Repair open in the wire between the PGM-FI main relay 2 and ECM connector No. 4 terminal No. 8 (test pin box terminal No. 89).n |
| 12. | Reinstall the PGM-FI main relay 2. |
| 13. | Turn the ignition switch ON (II). |
| 14. | Measure voltage between pin box terminal No. 89 and body ground. Is there battery voltage? YES - Go to 15. NO - Replace the PGM-FI main relay 2.n |
| 15. | Turn the ignition switch OFF. |
| 16. | Turn the ignition switch ON (II), and measure voltage between pin box ternimal No.89 and body ground. Is there battery voltage? YES - Substitute a known-good ECM and recheck. If symptom/indiction goes away, replace the original ECM.n NO - Go to 17. |
| 17. | Turn the ignition switch OFF. |
| 18. | Remove the access panel from the floor. |
| 19. | 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).
Is there battery voltage? YES - Go to 26. NO - Go to 20. |
| 20. | Turn the ignition switch OFF. |
| 21. | Remove the driver's side under cover. |
| 22. | Remove the relay holder (A) from the under-dash fuse/relay box, and remove the PGM-FI main relay 2 (blue) (B) from the relay holder (A), after reinstall the relay holder (A) to the under-dash fuse/relay box.
|
| 23. | Connect the PGM-FI main relay 2 5P connector terminals No. 1 and No. 2 with a jumper wire.
|
| 24. | Turn the ignition switch ON (II). |
| 25. | 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).
Is there battery voltage? YES - Replace the PGM-FI main relay 2.n NO - Repair open in the wire between the PGM-FI main relay 2 and the fuel pump 5P connector.n |
| 26. | Turn the ignition switch OFF. |
| 27. | Check for continuity between the fuel pump 5P connector terminal No. 4 and body ground.
Is there continuity? YES - Replace the fuel pump.n NO - Repair open in the wire between the fuel pump 5P connector and G402.n |