1. Inspect the inoperative bulbs for a damaged or open filament.
2. Check that the harness connector seals are not damaged or missing.

Are the bulbs and the harness connectors OK?

Go to Step 2

Go to Step 8

1. Turn the ignition switch to the RUN position.
2. Place the turn signal switch to the inoperative side.

Does the turn indicator flash for the inoperative side?

Go to Step  6

Go to Step 4

1. Repair the poor connection or an open in circuit 14 between S290 and S136 for the left tail/stop/turn lamp.
2. Repair the poor connection or an open in circuit 15 between S289 and S137 for the right tail/stop/turn lamp.

Is the repair complete?

Go to Exterior Lights System Check

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1. Turn the ignition switch to the RUN position.
2. Place the turn signal switch to the inoperable side.

•	Left Side: Using a test lamp, backprobe between connector C201 terminal A2 to ground.

•	Right Side: Using a test lamp, backprobe between connector C201 terminal A3 to ground.

Does the test lamp flash?

Go to Step 5

Go to Step 9

Is the repair complete?

Go to Exterior Lights System Check

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Are the side marker lamps and the turn lamps inoperable?

Go to Step 3

Go to Step 7

Has the repair made?

Go to Exterior Lights System Check

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Replace the damaged component.

Is the repair complete?

Go to Exterior Lights System Check

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Replace the turn signal switch. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle in Steering Wheel and Column - Tilt.

Is the repair complete?

Go to Exterior Lights System Check

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