Section 1 (Engine Controls - Tests W/Codes - 2.5L): Introduction
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Ensure all steps in the BASIC TESTING article have been followed. If no faults were found while performing the BASIC TESTS, proceed with self-diagnostics. If no service codes and only pass codes are found during self-diagnostics, proceed to H - "Engine Type" TESTS W/O CODES article for diagnosis of intermittents or driveability symptoms.