Navistar MaxxForce DT 9, Operation And Maintenance Manual

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SECTION 4 – ENGINE OPERATION
Operation (cont.)
ENGINE WARNING PROTECTION SYSTEM (EWPS) (cont.)
The following optional features to this base system provide
added warning or protection.
2 - Way Warning (optional)
• The warning mode is an optional calibration that can be
added to the EWPS by an authorized service provider.
• The engine will not shut down.
• ECT - Engine overheat warning
• EOP - Low engine oil pressure warning
3 - Way Warning (optional)
• The warning mode is an optional calibration that can be
added to the EWPS by an authorized service provider.
• The engine will not shut down.
• ECT - Engine overheat warning
• EOP - Low engine oil pressure warning
• ECL - Low engine coolant level warning
3 - Way Protection (optional)
• The protection mode is an optional calibration that can be
added to the EWPS by an authorized service provider.
• Engine shut down is available if critical condition is detected.
• ECT - Engine overheat warning
• EOP - Low engine oil pressure warning
• ECL - Low engine coolant level warning
Warning - Temperature above specific threshold will illuminate
the STOP ENGINE lamp and set a DTC.
Critical - Temperature above specific threshold will shutdown the
engine and set a DTC. The operator has 30 seconds to safely
pull vehicle off the road before the engine shuts off. A STOP
ENGINE warning lamp will illuminate before engine shutdown is
approaching. The ECM allows the engine to be restarted and
run for 30 second periods.
RADIATOR SHUTTLE ENABLE (RSE)
RSE is an optional feature that provides a signal to open or close
the radiator shutters. Closing the shutters will keep the engine
warm during cold weather operation.
Form No. 1172040R1
Printed in the United States of America
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