GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Disconnect the 17-terminal IP cluster connector at the instrument cluster.
  2. Place the ignition switch in the RUN position.
  3. Connect a test lamp between CKT 21 (BRN) at the instrument cluster harness connector terminal C12 to chassis ground.

Did the test lamp light?

--

Go to Step 2

Go to Step 3

2

Connect a J39200 between CKT 22 (BLK) at the instrument cluster connector terminal C15 and ground.

Does the DMM indicate continuity?

Go to Step 5

Go to Step 4

3

Locate and repair the open in CKT 21 (BRN) between the IP fuse block circuit breaker #6 and the instrument cluster connector.

Is the repair complete?

--

System OK

--

4

Locate and repair the open in CKT 22 (BLK) between the instrument cluster and joint connector 1, terminal 3F.

Is the repair complete?

--

System OK

--

5

Replace the instrument cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

--

System OK

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