GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

Schematic Reference: Exterior Lights Schematics

1

Did you review the exterior lighting operation and perform the necessary inspections?

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Go to Step 2

Go to Symptoms - Lighting Systems

2

   • 

Place the hazard switch in the ON position.

   • 

Observe the hazard lamps.

Do the hazard lamps illuminate and flash?

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Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

Do the vehicle's turn signals operate properly?

Go to Step 4

Go to Symptoms - Lighting Systems

Symptoms

4

Replace the multifunction switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column.

Did you complete the replacement?

Go to Step 5

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5

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 3