User Manual

Power supply for the Glow plugs
Illustration 46 g02381262
Typical example
The ECM supplies 5 DC volts through the ECM
connector to the glow plug control unit. The glow plug
control unit controls the glow plugs.
i04802048
Glossary of Electronic Control
Terms
Active Diagnostic Code – An active diagnostic code
alerts the operator or the service technician that an
electronic system malfunction is currently present.
Refer to the term “Diagnostic
Trouble Code” in this
glossary.
Aftertreatment – Aftertreatment is a system that is
used to remove pollutants from exhaust gases. The
system consists of a Diesel Oxidation Catalyst (DOC)
and a Diesel Particulate Filter (DPF).
Air-To-Air Aftercooler – An air-to-air aftercooler is a
device that is used on turbocharged engines in order
to cool inlet air that has undergone compression. The
inlet air is cooled after the inlet air passes through the
turbocharger. The inlet air is passed through an
aftercooler (heat exchanger) that uses ambient air for
cooling. The inlet air that has been cooled advances
to the inlet manifold.
Alternating Current (AC) – Alternating current is an
electric current that reverses direction at a regular
interval that is reoccurring.
Before Top Center (BTC) – BTC is the 180 degrees
of crankshaft rotation before the piston reaches the
top center position in the normal direction of rotation.
Boost Pressure – The difference between the
turbocharger outlet pressure and atmospheric
pressure is commonly referred to as boost pressure.
The sensor for the intake manifold air pressure
measures the amount of boost.
Breakout Harness – The breakout harness is a test
harness that is designed to connect into the engine
harness. This connection allows a normal circuit
operation and the connection simultaneously
provides a Breakout T in order to measure the
signals.
Bypass Circuit – A bypass circuit is a circuit that is
used as a substitute circuit for an existing circuit. A
bypass circuit is typically used as a test circuit.
CAN Data Link (see also J1939 CAN Data Link) –
The CAN Data Link is a serial communications port
that is used for communication with other
microprocessor-based devices.
Clean Emissions Module – The Clean Emissions
Module (CEM) includes all the components of the
engine aftertreatment system.
Code – Refer to “Diagnostic Trouble Code” .
Cold Mode – Cold mode is a mode for cold starting
and for cold engine operation. This mode is used for
engine protection, reduced smoke emissions, and
faster warm-up time.
Communication Adapter Tool – The
communication adapter provides a communication
link between the ECM and the Electronic Service
Tool.
UENR0623-02 49
Engine Operation
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