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.
Two seconds have passed since ignition switch has been turned to PUN POSITION, and 2 seconds have passed since PCM has commanded a shift in coolant temperature pull-up resistors. This occurs when sensor resistance indicates 122°F (50°C).