Symptom Charts

All diagnosis begins in SYMPTOM CHARTS - GASOLINE MODELS with QT: STEP 1: POWERTRAIN CONTROL MODULE (PCM) QUICK TEST . If the PCM Quick Test is completed and no DTCs are retrieved, the technician is directed to STEP 2: NO DTCS PRESENT SYMPTOM CHART INDEX . The No DTCs Present Symptom Chart Index contains the list of symptoms addressed and will direct the technician to the appropriate STEP 3: NO DTCS PRESENT SYMPTOM CHART . If no PCM DTCs are present and the vehicle symptom is not listed in STEP 2: NO DTCS PRESENT SYMPTOM CHART INDEX , the technician should go to the appropriate service information article to continue diagnosis.