GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Visually inspect the inoperative stop lamp bulb for an open.

Is the bulb OK?

--

Go to Step 2

Go to Step 5

2

Test the ground circuit of the inoperative stop lamp 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 stop lamp-Circuit 18 between the turn/headlamp/hazard switch assembly terminal C of connector C2 and the left stop lamp
    • Inoperative right stop lamp-Circuit 19 between the turn/headlamp/hazard switch assembly terminal B of connector C2 and the right stop lamp

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 stop lamp bulb.

Is the repair complete?

--

Go to Exterior Lights System Check

--