DIAGNOSTIC MANUAL
Engine Control Module (ECM)
An electronic processor that monitors and controls the engine.
Engine Coolant Level (ECL)
sensor
A switch sensor that monitors coolant level.
Engine Coolant Temperature 1
(ECT1) sensor
A thermistor sensor that detects engine coolant temperature.
Engine Coolant Temperature 2
(ECT2) sensor
A thermistor sensor that detects engine coolant temperature.
Engine Fuel Temperature (EFT)
sensor
A thermistor sensor that measures fuel temperature.
Engine lamp
An instrument panel lamp that comes on when DTCs are set. DTCs can be read as flash codes (red and
amber instrument panel lamps).
Engine OFF tests
Tests that are done with the ignition switch ON and the engine OFF.
Engine Oil Pressure (EOP)
sensor
A variable capacitance sensor that measures oil pressure.
Engine Oil Temperature (EOT)
sensor
A thermistor sensor that measures oil temperature.
Engine rating
Engine rating includes
Rated hp
and
Rated rpm
.
Engine RUNNING tests
Tests done with the engine running.
Engine Throttle Valve (ETV)
and Engine Throttle Position
Sensor
The ETV valve is used to control airflow during a regeneration process of the aftertreatment system. The
ETV valve is also used to ensure a smooth engine shut down by restricting airflow to the engine at shut down.
Engine Warning Protection
System (EWPS)
Safeguards the engine from undesirable operating conditions to prevent engine damage and to prolong
engine life.
Exhaust Back Pressure (EBP)
The pressure present in the exhaust system during the exhaust period.
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