GM Service Manual Online
For 1990-2009 cars only

Headlamps, Daytime Running Lamps (DRL) On with Headlamp Switch On Domestic

Step

Action

Value(s)

Yes

No

1

Was the DRL System Check performed?

--

Go to Step 2

Go to Daytime Running Lights (DRL) System Check

2

  1. Place the ignition switch in the RUN position.
  2. Disconnect the connector at the daytime running lamp control module.
  3. Connect an unpowered test lamp between the daytime running lamp control module connector cavity C for CKT 39 (PNK) and ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

Connect a J 39200 DMM between the daytime running lamp control module connector cavity H for CKT 150 (BLK) and a known good ground.

Is continuity present?

--

Go to Step 5

Go to Step 6

4

Repair the open in CKT 39 (PNK) between the IP fuse block and the daytime running lamp control module.

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

5

  1. Remove the daytime running lamp relay from the IP relay center.
  2. Connect an unpowered test lamp between the IP relay center cavity C1 from CKT 340 (ORN) and ground.

Does the test lamp light?

--

Go to Step 7

Go to Step 8

6

Repair the open in CKT 150 (BLK) between the daytime running lamp control module and ground G201.

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

7

Connect a J 39200 DMM between the IP relay center cavity D1 and the daytime running lamp control module connector cavity G for CKT 592 (LT GRN/BLK ).

Is continuity present?

--

Go to Step 9

Go to Step 10

8

Repair the open in CKT 340 (ORN) between the IP fuse block and the IP relay center cavity C1..

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

9

Replace the daytime running lamp control module.

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

10

Repair the open in CKT 592 (LT GRN/BLK) between the daytime running lamp control module connector and the IP relay center.

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

Headlamps, Daytime Running Lamps (DRL) On with Headlamp Switch On Export

Step

Action

Value(s)

Yes

No

1

Was the DRL System Check performed?

--

Go to Step 2

Go to Daytime Running Lights (DRL) System Check

2

  1. Place the ignition switch in the RUN position.
  2. Disconnect the connector at the daytime running lamp control module.
  3. Connect an unpowered test lamp between the daytime running lamp control module connector cavity C for CKT 39 (PNK) and ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

Connect a J 39200 DMM between the daytime running lamp control module connector cavity H for CKT 150 (BLK) and a known good ground.

Is continuity present?

--

Go to Step 5

Go to Step 6

4

Repair the open in CKT 39 (PNK) between the IP fuse block and the daytime running lamp control module.

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

5

  1. Remove the daytime running lamp relay from the IP relay center.
  2. Connect an unpowered test lamp between the IP relay center cavity C1 from CKT 340 (ORN) and ground.

Does the test lamp light?

--

Go to Step 7

Go to Step 8

6

Repair the open in CKT 150 (BLK) between the daytime running lamp control module and ground G201.

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

7

Connect a J 39200 DMM between the IP relay center cavity D1 and the daytime running lamp control module connector cavity G for CKT 592 (LT GRN/BLK ).

Is continuity present?

--

Go to Step 9

Go to Step 10

8

Repair the open in CKT 340 (ORN) between the IP fuse block and splice S203.

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

9

Replace the daytime running lamp control module.

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--

10

Repair the open in CKT 592 (LT GRN/BLK) between the daytime running lamp control module connector and the IP relay center.

Is the repair complete?

--

Go to Daytime Running Lights (DRL) System Check

--