Check fuse 26 in the fuse block.

Is Fuse 26 open?

Go to Step  8

Go to Step  2

Using a test lamp backprobe between the dome lamp connector terminal A and the ground.

Did the test lamp illuminate?

Go to Step  3

Go to Step  9

Check fuse 39 in the fuse block.

Is fuse 39 open?

Go to Step  10

Go to Step  4

Using a test lamp backprobe between B+ and the headlamp switch connector terminal A.

Did the test lamp illuminate?

Go to Step  5

Go to Step  15

Using a test lamp backprobe between the headlamp switch connector terminal N and the ground.

Did the test lamp illuminate?

Go to Step  6

Go to Step  16

1. Turn the ignition switch to the RUN position.
2. Using a test lamp backprobe between the headlamp switch connector terminal F and the ground.

Did the test lamp illuminate?

Go to Step  7

Go to Step  17

1. Open any vehicle door.
2. Using a test lamp backprobe between B+ and the headlamp switch connector terminal B.

Did the test lamp illuminate?

Go to Step  18

Go to Step  19

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

Is fuse 26 open again?

Go to Step  11

Go to Step  20

1. Remove fuse 26.
2. Using a test lamp probe between fuse 26 terminal A3 and the ground.

Did the test lamp illuminate?

Go to Step  12

Go to Step  13

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

Repair short to ground in circuit 240.

Is the repair complete?

Go to Step  20

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Repair the poor connection or open in circuit 240.

Is the repair complete?

Go to Step  20

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Repair the poor connection or open in circuit 242.

Is the repair complete?

Go to Step  20

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Repair short to ground in circuit 39.

Is the repair complete?

Go to Step  20

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Repair the poor connection or open in circuit 150.

Is the repair complete?

Go to Step  20

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Repair the poor connection or open in circuit 442.

Is the repair complete?

Go to Step  20

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Repair the poor connection or open in circuit 39.

Is the repair complete?

Go to Step  20

--

Repair the poor connection or open in circuit 156.

Is the repair complete?

Go to Step  20

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1. Inspect the headlamp switch connector for poor terminal contact.
2. Inspect circuit 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

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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

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