Symptom Charts

All diagnosis begins in QT: STEP 1: POWERTRAIN CONTROL MODULE (PCM) QUICK TEST . If the PCM Quick Test is completed and no diagnostic trouble codes (DTCs) are retrieved, the technician is directed to STEP 2: NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM CHART INDEX . The No Diagnostic Trouble Codes (DTCs) Present Symptom Chart Index contains the list of symptoms addressed and directs the technician to the appropriate STEP 3: NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM CHARTS . If no PCM DTCs are present and the vehicle symptom is not listed in Step 2: No Diagnostic Trouble Codes (DTCs) Present Symptom Chart Index, the technician should go to the appropriate service information article to continue diagnosis.