Pcm Code P014 - Shorted Coolant Sensor Signal: Notes
WARNING: This page is about a different car, the 1993 Cadillac Seville and 1993 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.
Coolant sensor is located on thermostat housing. Sensor signal is on circuit No. 410; sensor ground is on circuit No. 1076. As sensor temperature increases, resistance decreases. A high coolant temperature will result in low signal voltage on circuit No. 410. Code P014 sets because coolant temperature cannot be greater than 296°F (147°C) when intake air temperature is less than 212°F (100°C).