DTC Confirmation Test

Turn ignition off, connect scan tool and turn ignition on. Using scan tool, clear DTCs. See CLEARING DIAGNOSTIC TROUBLE CODES  under SELF-DIAGNOSTIC SYSTEM. Ensure fuel tank is at least 1/4 full, vehicle is at an altitude of 8000 feet or below, barometric pressure is 75 kPa or more, ambient temperature is 14°F (-10°C) or more, and intake air temperature is 158°F (70°C) or less. Drive vehicle at speeds of about 30-40 MPH for 2 minutes. Stop vehicle. With ignition on, check for current or pending DTC P0131 or P0132. See RETRIEVING DIAGNOSTIC TROUBLE CODES  under SELF-DIAGNOSTIC SYSTEM. If DTC resets, go to DIAGNOSIS & REPAIR PROCEDURE  .