K 1500 Truck 4WD V6-262 4.3L VIN Z (1992)
Temperature Warning Lamp/Indicator: Description and Operation
The Temperature Indicator goes on to warn of overheating when the Temperature Switch is closed. The Temperature Switch is closed when the
temperature rises above 123°C (260°F). When the Ignition Switch is in START the Temperature Indicator is grounded through the Ignition Switch and
the Indicator lamps.