Conditions for Running the DTC
- The ignition OFF time is more than 10 hours.
- The IAT sensor temperature is more than 7°C (44°F) at key up.
- A diagnostic test will need to be performed to determine if the temperature difference is caused by a block heater after the above conditions are met. The following item is the criterion to enable this test.
- The vehicle speed must be more than 24 km/h (15 mph) for more than 400 seconds.
- If the difference between the IAT and the ECT is more than 15°C (27°F) at start-up, the vehicle speed must be more than 24 km/h (15 mph) for more than 400 seconds.