GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

TOOLS REQUIRED: J 39200 DMM

1

Was the Charging System Check performed?

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Go to Step 2

Go to Charging System Check

2

  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 5

Go to Step 3

3

  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 B17 to ground.

Is the voltage reading the same as battery voltage?

--

Go to Step 6

Go to Step 4

4

Repair the open in CKT 39 (PNK) between the IP fuse block and the instrument cluster.

Is the repair complete?

--

Go to Charging System Check

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5

Repair or replace the generator. Refer to Generator Replacement

Is the repair or replacement complete?

--

Go to Charging System Check

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6

  1. Connect a jumper wire from cavity B17 of the IP Cluster to B+.
  2. Connect a jumper wire from cavity B16 of the IP Cluster to ground.

Does the battery indicator light?

--

Go to Step 8

Go to Step 7

7

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

Is the repair complete?

--

Go to Charging System Check

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8

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

Is the repair complete?

--

Go to Charging System Check

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