Navistar International DT 466 Diagnostic/Troubleshooting Manual page 531

7 ELECTRONIC CONTROL SYSTEMS DIAGNOSTICS
If the VGT actuator is suspect, use the EST to run
the Output State Test Low. See "Diagnostic Software
Operation" in Section 3 (page 68). Check crank lever
operation during this test.
VGT Diagnostic Trouble Codes (DTCs)
There are no specific DTCs relating to the wiring or
Output Circuit Check (OCC) for the VGT actuator.
When diagnosing the air management system, VGT
wiring and operation can be tested with the following
checks.
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Tools
• EST with MasterDiagnostics® software
• EZ-Tech® interface cable
• Digital Multimeter (DMM)
• Turbo Breakout Harness
• 12-pin Breakout Harness
• Breakout Box
• Terminal Test Adapter Kit
• 500 Ohm Resistor Harness
EGES-270-1
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
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