SYSTEM / Electrical System ENGINE STOP CIRCUIT (KEY SWITCH: OFF) 1. When the key switch is turned from the ON posi- tion to the OFF position, the signal current indi- cating that the key switch is ON stops flowing from terminal M to ECM terminal #V24. 2. ECM stops injection of injector and the engine stops. 3. When the engine stops, ECM turns the ECM main relay OFF. Key Switch Fusible Link (45 A) Battery Fuse Box ECM Main Relay ECM V24 T1J1-02-05-008 T2-5-20