Code Enable Criteria

• IAT is more than 93°F (34°C).
• ECT is more than 176°F (80°C).
• EVAP diagnostic is not running.
• Vehicle speed is zero MPH.
• No ECT, EVAP, IAT, TP, VSS DTCs are set.

DTC sets when actual idle speed is less than 100 RPM from ECM commanded idle speed.