Navistar MaxxForce DT Diagnostic Manual page 110

DIAGNOSTIC MANUAL
Step
8 Check for a failed Air Management System (AMS) actuator.
1. Using Electronic Service Tool (EST) with
ServiceMaxx™ software, go to Tests > Load
Test Specific Session and verify Load Test
Specific Session is unchecked.
2. Go to Sessions > Performance and select the
record snapshot icon from the toolbar.
3. Go to Tests > KOER Tests > Air Management
Test.
When Air Management Test is complete, stop recording.
Use the playback feature in ServiceMaxx™, and graph
the following signal values:
Signal Values:
• Engine Speed
• Intake Manifold Pressure (IMP)
• Turbocharger 2 Wastegate Control (TC2WC)
Does snapshot match Graph 1 or Graph 2 page 120?
106
Action
https://www.truck-manuals.net/
Decision
Graph 1: Go to step 9A
Graph 2: Diagnose and repair failed
actuator (See Performance Diagnostics
section in Engine Diagnostic Manual).
After repairs are complete, retest for
original problem.