Confirmation Procedure

1. Let the engine cool until the coolant temperature is 104°F (40°C) or less.

2. Confirm and note the HDS [ECT Sensor 1] and [ECT Sensor 2].

3. Start the engine, and let it idle.

4. Let the engine idle until the HDS [ECT Sensor 1] goes up 40°F (22°C) or more from the recorded value in step 2.

5. If the HDS [ECT Sensor 2] value rises 13°F (7°C) or more from the recorded value in step 2, the failure is duplicated.