DIAGNOSTIC MANUAL
Step
Action
Decision
5B
Check for Injection Control Pressure (ICP) system issue. On the
Electronic Service Tool (EST) with ServiceMaxx™ software, use
the playback feature and graph the following signal values from
the 0 to 60 MPH Test:
•
ICP Desired
•
ICP Actual
•
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?
Yes: Go to step 5C
No: Diagnose and repair ICP
system issue (See Hard Start/No
Start Diagnostics section in
Engine Diagnostic Manual). After
repairs are complete, go to Step
10A.
Step
Action
Decision
5C
Check for Air Management System (AMS) issue. On the
Electronic Service Tool (EST) with ServiceMaxx™ software, use
the playback feature and graph the following signal values from
the 0 to 60 MPH Test:
•
Engine Speed
•
Engine Load
•
Intake Manifold Temperature (IMP)
•
Exhaust back Pressure (EBP)
•
Accelerator Pedal Position 1 (APP1)
Compare snapshot to Graph 4 and associated Graph Analysis
page 55.
Is AMS operating as per Graph 4 Graph Analysis?
Yes: GO to step 6
No: Diagnose and repair
AMS issue (See Performance
Diagnostics section in the Engine
Diagnostic Manual). After repairs
are complete, go to step 10A.
47
https://www.truck-manuals.net/
