GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the instrument cluster diagnostic system check?

--

Go to Step 2

Go to A Diagnostic System Check - Instrument Cluster

2

Did you perform the BCM diagnostic system check?

--

Go to Step 3

Go to Diagnostic System Check - Body Control System in Body Control System.

3

  1. Install a Scan Tool.
  2. Close all vehicle doors.
  3. Turn the ignition switch to the RUN position.
  4. WOW the cluster ON and OFF.

Does the door ajar light toggle ON and OFF?

--

Go to Step 4

Go to Step 5

4

  1. Turn the ignition switch to the RUN position.
  2. Using the scan tool, enter into the instrument cluster inputs.
  3. Open and close the doors.

Does the door ajar input toggle ON and OFF?

--

Go to A Diagnostic System Check - Instrument Cluster

Go to Diagnostic System Check - Body Control System in Body Control System.

5

Replace the instrument cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

--

Go to A Diagnostic System Check - Instrument Cluster

--