SYSTEM / Electrical System STARTING CIRCUIT (KEY SWITCH: START) 1. When the key switch is turned to the START po- sition, terminal B is connected to terminals M and ST in the key switch. 2. As current from terminal M excites the battery relay, battery current is routed to starter terminal B and starter relay terminal B through the battery relay. 3. Current from terminal ST flows to starter relay terminal S through the starter cut relay. 4. Current flows to the starter relay coil and starter relay is turned ON. 5. Current flows to starter terminal C from starter relay terminal C. 6. Consequently, the relay in starter is turned ON so that the starter begins rotating. 7.
On the other hand, current from key switch ter- minal M flows to MC, ICF, the monitor unit and ECM through fuse #18 as a signal indicating that the key switch is in the ON or START position. 8. As soon as ECM receives this signal, ECM turns the ECM main relay ON. 9. Current from the battery flows to ECM through fuse #8, the ECM main relay and fuse #14 and the main power is turned ON. 10. ECM makes the engine starting condition. T2-5-6