Power Supply

Power Supply





KL30 Battery Voltage: B+ is the main supply of operating voltage to the ECM.
Power Supplies: The power supplies (KL15 and ECM Relay) are fused to the MS45 ECM. The fuses are housed in the Engine Fuse Block located in the Electronics Box.
KL15 Ignition Switch: When the ignition is switched on the ECM is informed that the engine is about to be started. KL15 (fused) supplies voltage to the Engine Control Module Relay and the Fuel Injector Relay. Switching KL15 off removes the ECM operating voltage.





Engine Control Module Relay: The ECM Relay provides the operating voltage for:





Ground: Multiple ground paths are necessary to complete current flow through the ECM.