Download Course 2 Reference Material.indd - For Dealers

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ENGINE MANAGEMENT SYSTEM - 3
BASIC TROUBLESHOOTING APPROACH
Obtain a clear concise description
of the problem
Check for applicable Service Updates
Perform a visual inspection of
the engine for obvious faults
Verify the Problem
Perform the On-Board-Diagnostic
(OBD) System Check
Isolate and Repair the Problem
Check/Clear Trouble Codes from ECM
Verify the Problem has been Corrected
Figure 3-14 Basic Troubleshooting Approach Tree
L599003-13
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