Navistar MaxxForce DT Diagnostic Manual page 27

Step
11 Perform Standard Test to verify all engine systems are operating
as designed. Verify engine coolant temperature is greater than
158°F (70°C). Using EST with ServiceMaxx™ software, go to
Tests > KOER Tests > Standard Test.
Does Standard Test run and pass?
Step
12 Perform the following MAF Sensor Calibration procedure to
accommodate for system repairs:
1. Verify engine coolant temperature is greater than
180°F (82°C), and lube oil temperature is greater
than 176°F (80°C).
2. Using EST with ServiceMaxx software, go to Tests >
and deselect Load Test Specific Session.
3. Go to Sessions > Performance and select the record
snapshot icon from the toolbar.
4. Go to procedures > KOER Procedures > MAF Sensor
Calibration.
5. After MAF Sensor Calibration is complete, stop
recording.
6. Turn the ignition switch to the OFF position for a
minimum of 30 seconds.
7. Repeat steps 3 through 5 to complete second MAF
Sensor Calibration.
Does MAF Sensor Calibration procedure run and pass?
Action
Action
https://www.truck-manuals.net/
DIAGNOSTIC MANUAL
Decision
Yes: Go to step 12
No: Diagnose and repair
active fault code(s). Go to
Electronic Control System
Diagnostics section in
Engine Diagnostic Manual.
Decision
Yes: Diagnostics complete
No: Go to Performance
Diagnostics section in
Engine Diagnostic Manual.
23