September 30: LEMON manuals is back up on a temporary server! Slowness is possible

Code Enable Criteria

Engine has been off for longer than 7 hours and 30 minutes.
Start-up IAT is greater than 50°F (10°C).
Vehicle has traveled at greater than 10 MPH.
IAT has increased by at least 5.4°F (3°C).
No IAT or ECT DTCs are set.

DTC sets when the difference between start-up ECT and IAT is greater than 27°F (15°C).