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 before restarting the engine.
- The temperature (IAT minus ECT1) is not 57°F (32°C) or less.
- The temperature (IAT minus ECT2) is not 28°F (16°C) or less.
- The temperature (ECT2 minus ECT1) is not 45°F (25°C) or less.