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SECTION 2 - OPERATION
2-92
Yellow and Red Engine Warning Lights
The EICS has two engine lamps located in the
lower right hand corner of the warning light bar.
The module on the side of the engine controls
these lights.
The yellow engine warning light, 1, will
illuminate when the module s enses non--critical
electrical faults. Non--critical faults are related to
the engine electrical components that
communicate with the module. These
components receive data from or send data to
the module, which is used to control the engine
performance. When a fault is detected in one of
the electrical component circuits, the module
will notify the Operator by illuminating the yellow
engine warning lamp. Examples of electrical
faults that can cause the yellow lamp to
illuminate are (but not limited to):
-- Loss of ground speed signal into the
module from the tractor EICS
-- Low/High voltage at specific pin
connectors of the module
-- Open/Shorted circuits connected to the
module
The red engine warning light, 1, will illuminate
when the module senses critical faults. Critical
faults are related to the module itself (internal
hardware) or to the engine electrical
components that communicate with the module.
These components receive data from or send
data to the module, which is used to control the
engine performance. When a fault is detected in
the module hardware or one of the electrical
component circuits, the module will notify the
Operator by illuminating the red engine warning
lamp. Examples of electrical faults that can
cause the red lamp to illuminate are (but not
limited to):
-- Failure of the internal microprocessor of
the module
-- High/Low voltage signal from the throttle
POT inside the tractor c ab
-- Loss of engine speed signal into the
module
1
Figure 2-123
1
Figure 2-124