Circuit Description
When the ignition is turned ON or to the START position, the main relay is energized. The main relay then supplies voltage to the engine fuse block fuse Ef11. The electronic ignition (EI) system ignition coil is supplied voltage through the engine fuse block fuse Ef11. The fuel injectors are supplied voltage through the engine fuse block fuse Ef11.
Diagnostic Aids
| • | An intermittent condition may be caused by a poor connection, rubbed through wire insulation, or a broken wire inside the insulation. |
| • | A faulty main relay will cause a no start condition. There will be no voltage supplied to the EI system ignition coil, or the fuel injectors. Without voltage supplied to these components, they will not operate. |
Step | Action | Values | Yes | No |
|---|---|---|---|---|
1 |
Is the light ON at both terminals? | -- | System OK | Go to Step 2 |
2 | Is the light ON at only 1 terminal? | -- | Go to Step 3 | Go to Step 4 |
3 | Repair the open in the wiring between the main relay connector terminal 87 and the fuse Ef11 as needed. Is the repair complete? | -- | System OK | -- |
4 |
Is the light ON at both terminals? | -- | Go to Step 6 | Go to Step 5 |
5 |
Is the resistance within the specified value? | 0 ohms | Go to Step 7 | Go to Step 6 |
6 | Repair open circuit. Is the repair complete? | -- | System OK | -- |
7 | Replace the main relay. Refer to Relay Replacement in Wiring Systems. Is the replacement complete? | -- | System OK | -- |
