GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

1

Did you review the Exterior Lights Circuit Description and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Lighting Systems

2

Verify that the hazard lamps operate but the turn signal lamps are inoperative.

Are the hazard lamps operative and the turn signal lamps inoperative?

Go to Step 3

Go to Testing for Intermittent Conditions and Poor Connections

3

  1. Disconnect connector 216. Refer to Lighting Systems Components .
  2. Turn the ignition switch to the ON position.
  3. Connect a test lamp between terminal 12 and ground.

Does the test lamp flash?

Go to Step 5

Go to Step 4

4

Repair the open in the GRN wire between connector 216 and S247. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

Go to Step 6

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5

Replace the turn signal switch. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement in SIR.

Is the repair complete?

Go to Step 6

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6

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3