Perkins 1104D Operation And Maintenance Manual page 34

34
Operation Section
Sensors and Electrical Components
Illustration 28
Failure of Sensors
All Sensors
A failure of any of the sensors may be caused by one
of the following malfunctions:
• Sensor output is open.
• Sensor output is shorted to "- battery" or "+
battery" .
• Measured reading of the sensor is out of the
specification.
Programmable Monitoring System
(PMS)
The Programmable Monitoring System determines
the level of action that is taken by the Electronic
Control Module (ECM) in response to a condition that
can damage the engine. These conditions are
identified by the ECM from the signals that are
produced from the following sensors.
• Coolant Temperature Sensor
• Intake manifold Air Temperature Sensor
• Intake manifold Pressure Sensor
SEBU8172-04
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