Check Gauges Lamp

The check gauges lamp lights when either the engine oil pressure is low or the engine coolant temperature is high. The instrument cluster check gauges lamp driver solid state logic monitors the input signals to the oil gauge and the temp gauge. With the ignition switch in the RUN or the START position, the check gauges lamp driver grounds the check gauges lamp. The check gauges lamp grounds when either of the input signals exceeds the setpoint. Exceeding the setpoint causes the lamp to light. The lamp normally illuminates when the ignition switch moves to the RUN position. The lamp extinguishes when the engine starts and the oil pressure increases above the setpoint.