GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the DRL System Check?

--

Go to Step 2

Go to Daytime Running Lights (DRL) System Check

2

Turn the ignition switch to the RUN position.

Is the daytime running lamps (DRL) indicator lit?

--

Go to Step 3

Go to Step 5

3

Disconnect the DRL module.

Is the DRL indicator lit?

--

Go to Step 4

Go to Step 6

4

Disconnect the instrument cluster connector.

Do the DRL disable?

--

Go to Step 7

Go to Step 8

5

Remove the DRL relay from the convenience center.

Do the DRL disable?

--

Go to Step 9

Go to Step 10

6

Replace the DRL module. Refer to Daytime Running Lights (DRL) Control Module Replacement .

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

7

Replace the instrument cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console.

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

8

Repair the short to ground in CKT 592 between the instrument cluster and the convenience cluster.

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

9

Replace the DRL relay. Refer to Daytime Running Lamps (DRL) Relay Replacement .

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

10

Repair the short to voltage in CKT 12 (TAN) between the convenience center and the left high/low beam headlamp (base headlamps) and the left high beam headlamp (quad headlamps).

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--