GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Start the vehicle.
  2. Connect a 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

Replace the generator. Refer to Generator Replacement .

Is the repair complete?

--

Go to Charging System Check

--