Koer Standard Test - Navistar International DT 466 Diagnostic/Troubleshooting Manual

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9. KOER Standard Test

Figure 304
Purpose
To verify that the engine sensors and IPR are
operating correctly within specified operating ranges
The ECM will actuate the IPR and monitor ICP sensor
feedback signals. If an ICP system problem exists,
the ECM will transmit DTCs to the EST.
Tools
• EST with MasterDiagnostics® software
• EZ-Tech® interface cable
Procedure
WARNING: To avoid serious personal injury,
possible death or damage to the engine or
vehicle, read all safety instructions in the "Safety
Information" section of this manual.
NOTE: The KOER Standard test can only be
done with the EST; MasterDiagnostics® software
is required.
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
6 PERFORMANCE DIAGNOSTICS
Figure 305 KOER Standard.ssn
1. Open D_KOER_Standard.ssn to monitor engine
possible death or damage to the engine or vehicle
– comply with the following:
When running the engine in the service bay, make
sure the parking brake is set, the transmission is
in neutral, and the wheels are blocked.
2. Start and run engine to reach minimum operating
EGES-270-1
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
operation.
WARNING: To avoid serious personal injury,
temperature 70 °C (158 °F) or higher.
NOTE: Engine coolant temperature must reach
70 °C (158 °F) minimum for the ECM to accurately
test engine actuators and sensors.
coolant temperature is below self test range, the
EST will display – Coolant temperature is out of
range.
If engine