Section 3: Symptom Charts

All diagnosis begins with the Powertrain Control Module (PCM) Quick Test. If the PCM Quick Test is completed and no diagnostic trouble codes (DTCs) are retrieved, the technician may be directed to the No DTCs Present Symptom Chart Index  . The No DTCs Present Symptom Chart Index contains the list of symptoms addressed in the appropriate Service Category article, and directs the technician to the appropriate chart in the No DTCs Present Symptom Chart  . If no PCM DTCs are present and the vehicle symptom is not listed in the No DTCs Present Symptom Chart Index, the technician should go to the appropriate Service Category article to continue diagnosis.