GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Lumina 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Courtesy Lamps Inoperative

Step

Action

Value(s)

Yes

No

1

Check fuse 26 in the fuse block.

Is Fuse 26 open?

--

Go to Step 8

Go to Step 2

2

Use a test light in order to backprobe between the dome lamp connector terminal A and the ground.

Did the test light illuminate?

--

Go to Step 3

Go to Step 9

3

Check fuse 39 in the fuse block.

Is fuse 39 open?

--

Go to Step 10

Go to Step 4

4

Use a test light in order to backprobe between B+ and the headlamp switch connector terminal A.

Did the test light illuminate?

--

Go to Step 5

Go to Step 15

5

Use a test light in order to backprobe between the headlamp switch connector terminal N and the ground.

Did the test light illuminate?

--

Go to Step 6

Go to Step 16

6
  1. Turn the ignition switch to the RUN position.
  2. Use a test light in order to backprobe between the headlamp switch connector terminal F and the ground.

Did the test light illuminate?

--

Go to Step 7

Go to Step 17

7
  1. Open any vehicle door.
  2. Use a test light in order to backprobe between B+ and the headlamp switch connector terminal B.

Did the test light illuminate?

--

Go to Step 18

Go to Step 19

8
  1. Replace fuse 26.
  2. Inspect fuse 26 again.

Is fuse 26 open again?

--

Go to Step 11

Go to Step 20

9
  1. Remove fuse 26.
  2. Use a test light in order to probe between fuse 26 terminal A3 and the ground.

Did the test light illuminate?

--

Go to Step 12

Go to Step 13

10
  1. Replace fuse 39.
  2. Turn the ignition switch to the RUN position.
  3. Inspect fuse 39 again.

Is fuse 39 open again?

--

Go to Step 14

Go to Step 20

11

Repair short to ground in CKT 240.

Is the repair complete?

--

Go to Step 20

--

12

Repair the poor connection or open in CKT 240.

Is the repair complete?

--

Go to Step 20

--

13

Repair the poor connection or open in CKT 242.

Is the repair complete?

--

Go to Step 20

--

14

Repair short to ground in CKT 39.

Is the repair complete?

--

Go to Step 20

--

15

Repair the poor connection or open in CKT 150.

Is the repair complete?

--

Go to Step 20

--

16

Repair the poor connection or open in CKT 442.

Is the repair complete?

--

Go to Step 20

--

17

Repair the poor connection or open in CKT 39.

Is the repair complete?

--

Go to Step 20

--

18

Repair the poor connection or open in CKT 156.

Is the repair complete?

--

Go to Step 20

--

19
  1. Inspect the headlamp switch connector for poor terminal contact.
  2. Inspect CKT 156 for a short to B+.
  3. Replace the headlamp switch if connection is OK. Refer to Headlamp Switch Replacement .

Is the repair complete?

--

Go to Step 20

--

20
  1. Turn the ignition switch to the LOCK position.
  2. Reconnect any of the connectors or components that were removed.

Have all repairs been made?

--

Go to Interior Lamps System Check

--