Catera V6-3.0L VIN R (1997)
Temperature Warning Lamp/Indicator: Description and Operation
The engine coolant temperature lamp comes on to warn the driver of high coolant temperature. With the ignition switch is in the RUN or START
position the voltage from the fuse block is applied to the lamp. In the START position the lamp circuit receives ground through the ignition switch so
that the bulb can be tested. In the RUN position current through the bulb can be grounded through the coolant temperature switch.