Section 2 (Engine Controls - Tests W/Codes - 3.4L): Introduction
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Perform all steps in BASIC TESTING - 3.4L article in this section. If no fault is found while performing basic diagnostic procedures, proceed with self-diagnostics. If no diagnostic trouble codes or only pass codes are found during self-diagnostics, proceed to TESTS W/O CODES - 3.4L article in this section for diagnosis by symptom.