Was the Diagnostic System Check performed?

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

Visually inspect the 20 Amp EXT LP fuse.

Is the fuse open?

Go to Step 3

Go to Step 8

With switch turned off test terminal D of the headlamp switch for continuity to ground.

Is ground present?

Go to Step 4

Go to Step 5

Repair short to ground in the Fuse Output-Battery Circuit. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

System OK

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Test the Park Lamp Feed Circuit for Continuity to ground.

Is ground present?

Go to Step 6

Go to Step 7

Repair short to ground in the Park Lamp Feed Circuit. Refer to Wiring Repairs in Wiring Systems.

Is The repair complete?

System OK

--

Replace the blown fuse.

Is the repair complete?

System OK

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1. Disconnect the turn/hazard - headlamp switch assembly connector.
2. Connect the test lamp between terminal D of the turn/hazard - headlamp switch assembly harness connector C1 and ground.

Does the test lamp light?

Go to Step 9

Go to Step 10

Connect the test lamp between terminal D and terminal F of the turn/hazard - headlamp switch assembly harness connector.

Do the park, marker and tail lamps light?

Go to Step 11

Go to Step 12

Repair the open in the Fuse Output-Battery Circuit between the fuse block and the turn/hazard - headlamp switch assembly harness connector. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

System OK

--

Replace the turn/hazard - headlamp switch assembly.

Is the repair complete?

System OK

--

Repair the open in the Park Lamp Feed Circuit. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

System OK

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