—CONTENTS— Group 1 Controller Group 5 Electrical System Can: Controller Area Network Outline ...................................................... T2-1-1 Outline ......................................................T2-5-1 Main Circuit ...............................................T2-5-2 (Network Provided for Machine).............. T2-1-2 Electric Power Circuit MC: Main Controller.................................. T2-1-3 (Key Switch: OFF) ...................................T2-5-4 ECM: Engine Control Module.................. T2-1-12 Accessory Circuit ......................................T2-5-5 ICF: Information Controller...................... T2-1-14 Starting Circuit (Key Switch:
START).........T2-5-6 Monitor Unit ............................................ T2-1-16 Group 2 Control System Charging Circuit (Key Switch: ON) ..........T2-5-10 Serge Voltage Prevention Circuit.............T2-5-14 Pilot Shut-Off Circuit (Key Switch: ON) ...T2-5-16 Engine Control.......................................... T2-2-4 Outline ...................................................... T2-2-1 Security Lock Circuit ...............................T2-5-18 Pump Control.......................................... T2-2-21 Engine Stop Circuit (Key Switch: OFF)....T2-5-20 Valve Control ..........................................
T2-2-42 Security Horn Circuit ...............................T2-5-21 Working Light Circuit ...............................T2-5-22 Other Controls ........................................ T2-2-54 Group 3 ECM System Wiper / Washer Circuit ............................T2-5-24 Outline ...................................................... T2-3-1 Fuel Injection Control................................ T2-3-2 Fuel Injection Amount Correction Control................................. T2-3-10 Preheating Control.................................. T2-3-11 EGR (Exhaust Gas Recirculation) Engine Stop Control................................
T2-3-14 Group 4 Hydraulic System Control .................................................. T2-3-12 Outline ...................................................... T2-4-1 Pilot Circuit ............................................... T2-4-2 Main Circuit............................................. T2-4-14 Counterweight Removal / Installation Circuit (Optional)................................... T2-4-24 1J1T-2-1 SECTION 2 SYSTEM