Malfunction Threshold

A malfunction is detected if these three conditions are not present after the engine and the ignition switch have been off for at least 6 hours:

• When the temperature (IAT minus ECT1) is not 63 °F (35 °C) or less.
• When the temperature (IAT minus ECT2) is not 46 °F (26 °C) or less.
• When the temperature (ECT2 minus ECT1) is not 84 °F (47 °C) or less.