User Manual

Illustration 41 g03360457
Schematic for the temperature sensors for the 854F-E34T (model JS) engine and 854F-E34T (model JT) engine
The air inlet temperature sensor and the coolant
temperature sensor are passive sensors. Each
sensor provides a temperature input to the ECM. The
ECM controls following operations:
• Fuel delivery
• Injection timing
The sensors are also used for engine monitoring.
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Power Sources
Introduction
The engine supplies power to the ECM. The ECM
powers the following components:
• All sensors
• The control valve for the fuel injection pump
• The solenoid for the wastegate
• Diagnostic connector
• Electronic unit injectors
The glow plugs are powered directly from the battery.
UENR0623-02 45
Engine Operation
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