22 SENR9977 Systems Operation Section i02251280 Electronic Control System g01133227 Illustration 25 Schematic of the electronic control system (1) Voltage load-dump protection module (VLPM) (2) Service tool connector (3) Machine interface connector (4) ECM (5) Coolant temperature sensor (6) Intake manifold temperature sensor (7) Engine oil pressure sensor (8) Intake manifold pressure sensor (9) Primary speed/timing sensor (10) Timing wheel (11) Fuel injection pump The electronic control system for the 1104C electronic engine has the following components: Electronic control module (ECM) Pressure sensors Temperature Sensors Primary speed/timing sensor Voltage load-dump protection module (VLPM)