Low Engine Coolant Indicator Always On. GMC Truck GMC P42 Commercial Chassis 1999

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC P42 Commercial Chassis 🢒 Body and Accessories 🢒 Instrument Panel, Gauges, and Console 🢒 Low Engine Coolant Indicator Always On

Step	Action	Value(s)	Yes	No
1	Turn the ignition switch to the RUN position. Disconnect the engine coolant level switch. Did the indicator turn off?	--	Go to Step 2	Go to Step 3
2	Replace the engine coolant level switch. Is the repair complete?	--	System OK	--
3	Disconnect the instrument cluster connector. Using a test light, probe the instrument cluster connector from cavity 25 to B +. Refer to Using Connector Test Adapters in Wiring Systems. Did the test light illuminate?	--	Go to Step 4	Go to Step 5
4	Repair the short to ground in CKT 68 (YEL/BLK) between the instrument cluster connector and the engine coolant level switch connector. Is the repair complete?	--	System OK	--
5	Replace the instrument cluster. Is the repair complete?	--	System OK	--