STEP 2. Using scan tool (M.U.T.-III), check data list.
(1) Turn the ignition switch to the "ON" position.
(2) Check the following item in the data list. Refer to Data List Reference Table .- Item 6: Engine Coolant Temperature Sensor
(3) Turn the ignition switch to the "LOCK" (OFF) position.
Is the sensor operating properly?
Refer to GROUP 23C, Automatic Transaxle Diagnosis - Torque Converter Stall Test . Repair or replace it. Then confirm that the malfunction symptom is eliminated.