Flow of Diagnosis
1. Have customer fill out the Customer Information Worksheet. Customer Information Worksheet2. Go to Symptom Charts and Quick Test.
Symptom Related Diagnostic Procedures
Quick Tests (Diagnostic Self-Tests)
3. If you are not familiar with the Quick Test procedure, review the information at:
Scan Tool Hookup Reading Diagnostic Trouble Codes
Diagnostic Methods Overview Testing Notes - Start Here
Vehicle Check/Preparation Vehicle Check/Preparation
About Diagnostic Quick Test Quick Tests (Diagnostic Self-Tests)
Retrieving Diagnostic Trouble Codes Reading Diagnostic Trouble Codes
4. It also will be helpful to review the information under Powertrain Management/Description and Operation. Description and Operation