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148
3. Diagnostic Trouble Codes
Figure 168
Purpose
•
To determine if the ECM has detected Diagnostic
Trouble Codes (DTCs) indicating conditions that
could cause engine problems
•
To fill out Diagnostic Form heading
•
To check for abnormal sensor readings
Tools
•
EST with MasterDiagnostics® software
•
EZ-Tech® interface cable
Vehicle Information for Form Heading
Figure 169
NOTE: Before continuing diagnostic tests, fill out the
form heading on Diagnostics Form EGED-290.
Entering Vehicle Information without using the
EST
1. Enter the following information in the form
heading:
•
Technician
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
5 HARD START AND NO START DIAGNOSTICS
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
•
Date (for warranty)
•
Unit
No
customer's vehicle identification)
•
Truck build (date)
•
Complaint (for warranty)
EGES-270-1
(dealer's
quick
reference
for
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