Schematic Reference: Exterior Lights Schematics

Connector End View Reference: Master Electrical Component List

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

1. Turn the ignition to the ON position, with the engine OFF.
2. Observe the turn signal lamps and indicators.
3. Turn ON and OFF the right and left turn signal lamps.

Do the turn signal lamps and indicators operate properly?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

1. Place the turn signal switch in the OFF position.
2. Place the hazard warning switch in the OFF position.

Are only the turn signal indicators always ON?

Go to Step 11

Go to Step 4

Are all 4 of the turn signals lamps flashing?

Go to Hazard Lamps Always On

Go to Step 5

Is only one lamp on at all times?

Go to Step 6

Go to Step 7

Test for a short to battery positive voltage in the turn signal voltage circuit. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 12

Go to Step 9

Disconnect the multifunction turn signal switch.

Do the turn signal lamps turn off?

Go to Step 10

Go to Step 8

Test for a short to ground in the illuminated turn signal switch circuit. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 12

Go to Step 9

Replace the body control module (BCM). Refer to Control Module References for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 12

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Replace the multifunction turn signal switch. Refer to Turn Signal Multifunction Switch Replacement .

Did you complete the replacement?

Go to Step 12

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Replace the instrument panel cluster (IPC). Refer to Instrument Cluster Replacement .

Did you complete the repair?

Go to Step 12

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2