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 turn signal switch to a turn left or a turn right position.

Do the turn signal tamps flash on and off?

--

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

Inspect the Turn Signal, Corn LPS Fuse.

Is the fuse open?

--

Go to Step 4

Go to Step 5

4

Repair a short to ground in the turn signal 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 5

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5

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