TABLE OF CONTENTS Overview ........................................................................................................ 4 Electric Supply System .................................................................................. 6 Engine Starting Circuit ................................................................................... 8 Operation During Start Process.............................................................. 8 Operation After Start Process............................................................... 10 Engine Stop and Derating System ...............................................................
12 Operation In Engine Stop...................................................................... 12 Operation in Engine Derating................................................................ 12 Charging System.......................................................................................... 14 Monitoring System ....................................................................................... 15 Instrument Panel................................................................................... 16 Function Check .....................................................................................
17 Monitoring System Schematic .............................................................. 18 Operation .............................................................................................. 20 Windshield Wiper ......................................................................................... 24 Front Windshield Wiper......................................................................... 24 Rear Windshield wiper .......................................................................... 25 Lighting System............................................................................................
28 Light Circuit ........................................................................................... 28 Engine Control System................................................................................. 31 ECM Block Diagram.............................................................................. 31 ECM Electric Circuit ..................................................................................... 32 ECM External Circuit............................................................................. 32 ECM Internal Circuit..............................................................................
33 ECM System Component............................................................................. 34 ECM (Electronic Control Module).......................................................... 34 Alternate (Switchable) Torque Switch ................................................... 34 Alternate Low Idle Switch...................................................................... 35 Idle Speed Control Switch..................................................................... 35 Engine Diagnostic Switch...................................................................... 36 Engine Fault Codes...............................................................................
36 S0802195K Page 2 Electrical System