GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Audible Warnings Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Audible Warnings

2

  1. Disconnect the instrument panel cluster (IPC) connector.
  2. Connect a test lamp between the IPC connector terminal C2 terminal B7 and battery positive voltage.

Does the test lamp illuminate?

--

Go to Step 3

Go to Step 5

3

Disconnect C 202.

Does the test lamp illuminate?

--

Go to Step 4

Go to Step 6

4

Repair a short to ground in CKT 80 (LT GRN). Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Diagnostic System Check - Audible Warnings

--

5

Perform the IPC Diagnostic System Check. Refer to Diagnostic System Check - Instrument Cluster .

Did you complete the inspection?

--

Go to Step 7

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6

Replace the key-in-ignition switch.

Did you complete the repair?

--

Go to Diagnostic System Check - Audible Warnings

--

7

Replace the IPC. Refer to Instrument Cluster Replacement .

Did you complete the repair?

--

Go to Diagnostic System Check - Audible Warnings

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