Navistar MaxxForce DT Diagnostic Manual page 54

DIAGNOSTIC MANUAL
Step
8 Run Down Stream Injection (DSI) System De-Aeration
Procedure two times, to purge the DSI system of air. Using the
Electronic Service Tool (EST) with ServiceMaxx™ software,
go to Procedures > KOER Aftertreatment Procedures > DSI
System De-Aeration.
Step
9
Using Electronic Service Tool (EST) with ServiceMaxx™
software, check Diagnostic Trouble Code (DTC) list for any fault
code(s) that may have become active during OBFCT.
Does DTC list contain any active fault code(s)?
Step
10 Verify exhaust gas temperatures are within specification.
1. Using Electronic Service Tool (EST) with
ServiceMaxx™ software, go to Tests > KOER
Aftertreatment Tests > Onboard Filter Cleanliness
Test (OBFCT).
2. Go to Sessions > Performance and select the
record snapshot icon from the toolbar.
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 snapshot to Graph 5 and 6 page 57.
Which graph does snapshot most closely match?
50
Action
Action
Action
https://www.truck-manuals.net/
Decision
Go to step 9
Decision
Yes: Diagnose and repair active
fault code(s) (See Electronic Control
System Diagnostics in Engine
Diagnostic Manual). After repairs
are complete, go to step 10.
No: Go to step 10
Decision
Graph 5: End of diagnostics
Graph 6: Go to Performance
Diagnostics section in the Engine
Diagnostics Manual.