Cutlass Ciera L4-2.2L VIN 4 (1995)
Temperature Gauge: Description and Operation
Circuit Operation
ENGINE COOLANT TEMPERATURE GAGE
The Engine Coolant Temperature Gage is also operated by two coils. Battery voltage is applied to both coils. One is grounded directly and the
other is grounded through the Engine Coolant Temperature Sensor. The Engine Coolant Temperature Sensor has 44 ohms resistance at 28O°F
(138°C) and its resistance increases at lower temperatures. Resistance is approximately 1365 ohms at 1OO°F (37°C).This causes the current
through the Engine Coolant Temperature Sensor and one coil to increase as the coolant temperature increases and moves the pointer.
