GM Service Manual Online
For 1990-2009 cars only

Headlamps Inoperative - High Beams Non VE1

Step

Action

Value(s)

Yes

No

1

Did you perform the Headlights System Check?

--

Go to Step 2

Go to Headlight System Check

2

  1. Turn the headlamp and panel dimmer switch to the ON position.
  2. Move the headlamp dimmer switch to the HI position.
  3. Use a test lampJ 35616-200 in order to backprobe CKT 11 (LT GRN) cavity C at the headlamp dimmer switch connector to ground.

Does the test lamp light?

--

Go to Step 4

Go to Step 3

3

Replace the headlamp dimmer switch. Refer to Headlamp Switch Replacement .

Is the repair complete?

--

Go to Headlight System Check

--

4

Repair the open in CKT 11 (LT GRN) between the headlamp dimmer switch and splice S106.

Is the repair complete?

--

Go to Headlight System Check

--

Headlamps Inoperative - High Beams VE1

Step

Action

Value(s)

Yes

No

1

Did the Headlight System Check bring you here?

--

Go to Step 2

Go to Headlight System Check

2

Check LIGHTING Fuse 8 at the Underhood Fuse/Relay Center.

Is the fuse functional?

--

Go to Step 4

Go to Step 3

3

Locate overload and replace LIGHTING Fuse.

Is the repair complete?

--

Go to Headlight System Check

--

4

  1. Place Headlamp Switch in the HEAD position and Headlamp Dimmer Switch in HIGH BEAM position.
  2. Connect a test lamp J 35616-200 from CKT 11 (LT GRN) wire at inoperative Headlamp to ground.

Does the test lamp light?

--

Go to Step 5

Go to Step 6

5

Connect a test lamp J 35616-200 from CKT 11 (LT GRN) wire to CKT 250 or 350 (BLK) wire at inoperative Headlamp.

Does the test lamp light?

--

Go to Step 9

Go to Step 10

6

Connect a test lamp J 35616-200 from CKT 11 (LT GRN) wire at C102 cavity B to ground.

Does the test lamp light?

--

Go to Step 11

Go to Step 7

7

Connect a test lamp J 35616-200 from CKT 11 (LT GRN) wire at C201 cavity E11 to ground.

Does the test lamp light?

--

Go to Step 12

Go to Step 8

8

Connect a test lamp J 35616-200 from CKT 11 (LT GRN) wire cavity C at Headlamp Dimmer Switch.

Does the test lamp light?

--

Go to Step 13

Go to Step 14

9

Replace the Headlamp(s). Refer to Headlamp Replacement .

Is the repair complete?

--

Go to Headlight System Check

--

10

Locate and repair open in CKT 250 or 350 (BLK) wire between inoperative Headlamp and ground.

Is the repair complete?

--

Go to Headlight System Check

--

11

Locate and repair open in CKT 11 (LT GRN) wire between C102 and inoperative Headlamp.

Is the repair complete?

--

Go to Headlight System Check

--

12

Locate and repair open in CKT 11 (LT GRN) wire between C201 and C102.

Is the repair complete?

--

Go to Headlight System Check

--

13

Locate and repair open in CKT 11 (LT GRN) wire between Headlamp Dimmer Switch and C201.

Is the repair complete?

--

Go to Headlight System Check

--

14

Replace Headlamp Dimmer Switch. Refer to Headlamp Switch Replacement

Is the repair complete?

--

Go to Headlight System Check

--