Navistar MaxxForce DT Diagnostic Manual page 37

Step
18 Perform Standard Test to verify all engine systems are operating as
designed. Verify engine coolant temperature is greater than 158°F
(70°C). Using Electronic Service Tool (EST) with ServiceMaxx™
software, go to Tests > KOER Tests > Standard Test.
Does Standard Test run and pass?
Step
19 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 19
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.
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