GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Visually inspect the inoperative turn lamp bulbs for an open.

Are all the bulbs OK?

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Go to Step 2

Go to Step 5

2

Test the ground circuit of the inoperative turn lamps for an open or high resistance.

Was a condition found and corrected?

--

Go to Exterior Lights System Check

Go to Step 3

3

Test for an open in the following circuits:

    • Inoperative left turn lamps-Circuit 14 between the turn/headlamp/hazard switch assembly terminal F of connector C2 and the left turn lamps
    • Inoperative right turn lamps-Circuit 15 between the turn/headlamp/hazard switch assembly terminal G of connector C2 and the right turn lamps

Was a condition found and corrected?

--

Go to Exterior Lights System Check

Go to Step 4

4

Replace the turn/hazard/headlamp switch asembly.

Is the repair complete?

--

Go to Exterior Lights System Check

--

5

Replace the inoperative turn lamp bulbs.

Is the repair complete?

--

Go to Exterior Lights System Check

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