Signal Values - Navistar MaxxForce DT Diagnostic Manual

DIAGNOSTIC MANUAL
Step
2B Check for Injection Control Pressure (ICP) system issue. Using EST with
ServiceMaxx™ software, use the playback feature and graph the following
signal values from 0 to 60 MPH Test:

Signal Values:

• ICP desired
• ICP
• Injection Pressure Regulator (IPR) valve control %
Compare snapshot to Graph 3 and associated Graph Analysis page 54.
Is ICP system operating as per Graph 3 Graph Analysis?
10
Action
https://www.truck-manuals.net/
Decision
Yes: Go to step
2C
No: Diagnose
and repair ICP
system issue (See
Hard Start and No
Start Diagnostics
section in Engine
Diagnostic
Manual). After
repairs are
complete, retest
for original
problem.