GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Instrument Cluster System Check?

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Go to Step 2

Go to Instrument Cluster System Check

2

  1. Unfasten the left hand (LH) safety belt.
  2. Remove the audio alarm module from the convenience center. Refer to Multifunction Alarm Module Replacement .
  3. Connect a fused jumper form the audio alarm module CKT 234 (YEL) cavity K3 in the convenience center to CKT 39 (PNK) cavity K4.

Does the fasten safety belts indicator light?

--

Go to Step 4

Go to Step 3

3

  1. Disconnect the instrument cluster.
  2. Use a DMM J 39200 in order to test CKT 234 (YEL) for continuity between the instrument cluster and the convenience center connectors.

Is there any continuity?

--

Go to Step 6

Go to Step 5

4

Replace the audio alarm module. Refer to Multifunction Alarm Module Replacement .

Is the repair complete?

--

Go to Instrument Cluster System Check

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5

Repair the open in CKT 234 (YEL) between the convenience center and the instrument cluster.

Is the repair complete?

--

Go to Instrument Cluster System Check

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6

Inspect for an open in CKT 750 (BLK) between the instrument cluster and ground G100.

Did you find an open?

--

Go to Step 8

Go to Step 7

7

Replace the instrument cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

--

Go to Instrument Cluster System Check

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8

Repair the open in CKT 750 (BLK) between the instrument cluster and ground G100.

Is the repair complete?

--

Go to Instrument Cluster System Check

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