GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Disconnect the stoplamp switch.

Are the stoplamps still ON?

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Go to Step 3

Go to Step 2

2

Adjust/Replace the Stoplamp Switch.

Refer to Stop Lamp Switch Adjustment or Stop Lamp Switch Replacement in Hydraulic Brakes.

Has the repair been made?

--

Go to Exterior Lights System Check

--

3

Repair a short to B+ on circuit 17.

Has the repair been made?

--

Go to Exterior Lights System Check

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