GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Check for a poor connection or an open in CKT 8 between the driver information display harness connector terminal 11 and the headlamp and instrument panel lamp dimmer switch harness connector terminal H.

Is there a poor connection or an open in CKT 8?

--

Go to Step 2

Go to Step 3

2

Repair the poor connection or the open in CKT 8 between the driver information display harness connector terminal 11 and the headlamp and instrument panel lamp dimmer switch harness connector terminal H.

Has the repair been made and the system rechecked?

--

System OK

--

3

Check for a poor connection or an open in CKT 308 between the driver information display harness connector terminal 12 and the headlamp and instrument panel lamp dimmer switch harness connector terminal I.

Is there a poor connection or open in CKT 308?

--

Go to Step 4

Go to Step 5

4

Repair the poor connection or the open in CKT 308 between the driver information display harness connector terminal 12 and the headlamp and instrument panel lamp dimmer switch harness connector terminal I.

Has the repair been made and the system rechecked?

--

System OK

--

5

Replace the driver information display. Refer to Driver Information Center Replacement .

Has the replacement been made and the system rechecked?

--

System OK

--