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Engine Coolant Temperature Sensor: 2.0L

  1. Ensure engine is cold. Connect scan tool to Data Link Connector (DLC) located below A/C-heater control panel. With scan tool in READ MEASURING VALUE BLOCK function, read coolant temperature value in field No. 2 of scan tool.
  2. Temperature value must increase uniformly without interruption. If there is an interruption (open), 77.7°C will be displayed. If coolant temperature value does not change, test circuit using Ground & Power Circuits Check ECM ground and power circuits using appropriate PIN VOLTAGE CHARTS article.
  3. If necessary, replace ECT sensor. After repairs, erase DTC memory (if applicable) and select END OUTPUT function on scan tool.
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