Symptom Diagnosis: Notes

Symptom checks cannot be used properly unless the problem is actually happening while the vehicle is being tested. To reduce diagnostic time, make sure test procedures in the BASIC TESTING and TESTS W/CODES (if applicable) articles have been performed before attempting to diagnose a symptom. For symptoms available for diagnosis see the SYMPTOM-TO-DIAGNOSIS MENU below. Recommended system and component checks may not apply to all vehicles.