Voltmeter Displaying High or Low. GMC Truck GMC K Pickup

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC K Pickup - 4WD 🢒 Engine 🢒 Engine Electrical 🢒 Voltmeter Displaying High or Low

Step	Action	Value(s)	Yes	No
1	Start the vehicle. Connect a J 39200 DMM across the battery terminals. Is the voltage reading within specifications?	12.0 - 16.0 V	Go to Step 2	Go to Step 3
2	Replace the instrument cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console. Is the replacement complete?	--	Go to Charging System Check	--
3	Inspect the generator. Refer to Generator Assembly Bench Check . Is the repair complete?	--	Go to Charging System Check	--

Step

Action

Value(s)

Yes

Is the voltage reading within specifications?

12.0 - 16.0 V

Replace the instrument cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console.

Is the replacement complete?

Inspect the generator. Refer to Generator Assembly Bench Check .

Is the repair complete?