Complicated vehicles with interrelated systems still break down. Even deciding which system is at fault can be a problem. No single piece of test equipment will diagnose every problem for you. This course is intended to help you diagnose late model GM Drive-ability issues. The course begins with teaching GM Strategy Based Diagnostics. It then continues with Diagnosing Ignition, Fuel Delivery, and PCM Code Diagnostics. Scan Data Interpretation will be highlighted in class.

Case Studies from numerous GM Vehicles will be providing test Data. A late model Prop will be used.

COURSE OUTLINE   

1. Acronyms

2.  Strategy Based Diagnosis

3.  Basic Engine Diagnostics

4. Ignition Diagnostics

   • Primary

   • Secondary

   • Triggering

5. Fuel Delivery Diagnostics

   • Injector waveforms

   • Interpreting Scan Data

6. PCM Problem

   • PCM Resets

   • Current Limiting

7. Codes - Specific Code Interpretation & Diagnosis

8. Introduction to Mode 6 Diagnostics 

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