Inspection/Maintenance Exhaust Gas RECIRCULATION System Set Procedure: Enable

WARNING: This page is about a different car, the 2001 GMC Savana, 2001 Chevrolet RV Cutaway, 2001 Chevrolet Cutaway, and 2001 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

Barometric (BARO) pressure is more than 70 kPa.
Engine Coolant Temperature (ECT) is 140-244°F (60-118°C).
Intake Air Temperature (IAT) is less than 167°F (75°C).