GM Service Manual Online
For 1990-2009 cars only

Daytime Running Lamps (DRL) Headlamps Inoperative Scandinavia

Step

Action

Value(s)

Yes

No

1

Did you perform the Diagnostic System Check?

--

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

2

  1. Turn the ignition to the RUN position.
  2. Turn the headlamp switch to the OFF position.
  3. Ensure that the park brake is not engaged.

Do the DRL headlamps illuminate?

--

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

Repair a poor connection or an open in the ignition 3 voltage circuit of the daytime running lamps (DRL) relay between S210 and S207. Refer to Wiring Repairs or Connector Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 4

--

4

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 3

Daytime Running Lamps (DRL) Headlamps Inoperative Pontiac, Chevy Domestic, Gulf States

Step

Action

Value(s)

Yes

No

1

Did you perform the Diagnostic System Check?

--

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

2

  1. Turn the ignition to the RUN position.
  2. Turn the headlamp switch to the OFF position.
  3. Ensure that the park brake is not engaged.

Do the DRL headlamps illuminate?

--

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

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

Did you complete the replacement?

--

Go to Step 4

--

4

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 3