DIAGNOSTIC MANUAL
Step
Action
Decision
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.
Go to step 9
Step
Action
Decision
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)?
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
Step
Action
Decision
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?
Graph 5: End of diagnostics
Graph 6: Go to Performance
Diagnostics section in the Engine
Diagnostics Manual.
50
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