Navistar MaxxForce DT Diagnostic Manual page 52

Aftertreatment symptom-based diagnostic and inspection manual
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DIAGNOSTIC MANUAL
Step
6
Verify exhaust gas temperatures are within specification.
1.
ServiceMaxx™ software, go to Sessions >
Performance and select the record snapshot icon
from the toolbar.
2. Go to Tests > KOER Aftertreatment Tests > Onboard
Filter Cleanliness Test.
When OBFCT is complete, stop recording. Use the playback
feature and graph the following signal values from OBFCT:
Diesel Oxidation Catalyst Inlet Temperature (DOCIT)
Diesel Particulate Filter Inlet Temperature (DPFIT)
Diesel Particulate Filter Outlet Temperature (DPFOT)
DPF Soot Load
Compare snapshots to Graph 5 and Graph 7 page 57.
Which graph does snapshot most closely match?
48
Action
Using Electronic Service Tool (EST) with
https://www.truck-manuals.net/
Decision
Graph 5: Diagnostics complete
Graph 7: Go to step 7

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