Volt Gage Inaccurate or Inoperative. GMC Truck GMC C-Series Medium Duty Truck B7 1999

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC C-Series Medium Duty Truck B7 🢒 Engine 🢒 Engine Electrical 🢒 Volt Gage Inaccurate or Inoperative

Step	Action	Value(s)	Yes	No
1	Place the ignition switch in the RUN position. Check the battery voltage with a voltmeter. Compare the instrument cluster voltmeter indication to the tested voltage. The values should be the same, within approximately 2 volts. Are the voltmeter indications approximately the same?	--	System OK	Go to Step 2
2	Replace the instrument cluster. Refer to Instrument Cluster Replacement . Is the repair complete?	--	System OK	--

Step

Action

Value(s)

Yes

Place the ignition switch in the RUN position.
Check the battery voltage with a voltmeter.
Compare the instrument cluster voltmeter indication to the tested voltage. The values should be the same, within approximately 2 volts.

Are the voltmeter indications approximately the same?

System OK

Replace the instrument cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

System OK