GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Lighting System Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Lighting Systems

2

  1. Turn the ignition to the ON position.
  2. Place the hazard lamp switch to the ON position.

Do all of the turn signal tamps flash on and off?

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Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

Inspect the Hazard Fuse.

Is the fuse open?

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Go to Step 4

Go to Step 5

4

Repair a short to ground in the hazard warning switch fuse B+ circuit feed. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

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Go to Step  8

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5

Disconnect the turn signal switch.

Using a test lamp connected to a known good ground, probe the hazard switch fused B+ circuit.

Does the test lamp illuminate?

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Go to Step 7

Go to Step 6

6

Repair a poor connection or an open in the hazard warning switch fuse B+ circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

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Go to Step 8

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7

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

Did you complete the repair?

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Go to Step 8

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8

Operate the system in order to verify the repair.

Did you correct the condition?

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Go to Diagnostic System Check - Lighting Systems

Go to Step 2