GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: Battery indicator stays on when engine is running.

1

  1. Turn OFF the engine.
  2. Disconnect the BRN (25) wire connector from the generator.

Does the battery indicator remain lit?

--

Go to Step 3

Go to Step 2

2

Replace the generator. Refer to Generator Replacement.

Does the battery indicator remain lit?

--

Go to Step 4

System OK

3

  1. Disconnect the connector at the instrument cluster.
  2. Connect a self-powered test lamp between the generator connector Cavity B (W/100 Amp Generator) or Cavity L (W/124 Amp Generator) and ground.

Does the test lamp light?

--

Go to Step 4

Go to Step 5

4

Locate and repair the short to ground in BRN (25) wire between the instrument cluster and the generator.

Is the repair complete?

--

System OK

--

5

Replace the instrument cluster.

Is the repair complete?

--

System OK

--