GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Disconnect the generator connector.
  2. Turn the ignition switch to the RUN position.
  3. Connect a fused jumper from cavity B, CKT 25 (BRN), of the generator connector, to ground.

Does the battery indicator light?

--

Go to Step 4

Go to Step 2

2

  1. Disconnect the instrument cluster connector.
  2. Turn the ignition switch to the Run position.
  3. Measure the voltage between the instrument cluster connector terminal 22 to ground.

Is the voltage reading the same as battery voltage?

--

Go to Step 5

Go to Step 3

3

Repair the open in CKT 39 (PNK) between the IP fuse block and the instrument cluster. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Charging System Check

--

4

Repair or replace the generator. Refer to Generator Replacement .

Is the repair or replacement complete?

--

Go to Charging System Check

--

5

  1. Connect a jumper wire from cavity 22 of the IP Cluster to B+.
  2. Connect a jumper wire from cavity 19 of the IP Cluster to ground.

Does the battery indicator light?

--

Go to Step 7

Go to Step 6

6

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

Is the replacement complete?

--

Go to Charging System Check

--

7

Repair the open in CKT 25 (BRN) between the instrument cluster and the generator. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Charging System Check

--