514 7 ELECTRONIC CONTROL SYSTEMS DIAGNOSTICS
RSE (Radiator Shutter Enable)
Figure 492 Function diagram for the RSE
The function diagram for the RSE includes the
following:
• Electronic Control Module (ECM)
• Intake Air Temperature (IAT) sensor
• Engine Coolant Temperature (ECT) sensor
• Manifold Air Temperature (MAT) sensor
• Shutter solenoid
• Electronic S ystem C on troller (ESC)
• Drivetrain Datalink (CAN 1)
Function
The Radiator Shutter Enable (RSE) feature provides
the correct logic to open or close the radiator shutters
(energize or de-energize a solenoid). Closing the
shutters will keep the engine warm during cold
weather operation. This provides faster warm up of
the passenger cab and enables faster windshield
defrosting.
EGES-270-1
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
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