Test Conditions
WARNING: This page is about a different car, the 1995 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
Codes P014 and P015 not set, and engine coolant temperature is 23°F (-5°C) or greater, or if engine coolant temperature with ignition on is -13°F (-25°C) or less, warm engine for at least 15 minutes before testing for Code P038.