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

Verify the operation of the brake indicator lamp.

Does the brake indicator lamp light?

--

Go to Step 3

Go to Step 4

3

  1. Disconnect the DRL Module.
  2. Disconnect the instrument cluster.
  3. Connect a Digital MultimeterJ 39200 from the DRL module CKT 592 (LT GRN/BLK) cavity G to the intsrument cluster cavity A17.

Is there continuity?

--

Go to Step 8

Go to Step 7

4

Inspect CKT 39 (PNK) for an open between the instrument cluster and S213.

Does an open exist?

--

Go to Step 5

Go to Step 6

5

Repair the open in CKT 39 (PNK).

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

6

Replace the instrument cluster Instrument Cluster Replacement .

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

7

Repair the open in CKT 592 (LT GRN/BLK) between the DRL module and the instrument cluster.

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

8

  1. Connect the instrument cluster.
  2. Connect a fused jumper from the DRL module connector CKT 592 (LT GRN/BLK) cavity G to ground.

Does the DRL indicator lamp light?

--

Go to Step 9

Go to Step 10

9

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

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

10

Inspect the DRL indicator bulb.

Is the bulb open?

--

Go to Step 11

Go to Step 6

11

Replace the DRL indicator bulb.

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--