GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Inspect the HAZARD fuse.

Is the fuse open?

--

Go to Step 2

Go to Step 3

2

Repair a short to ground in CKT 1840.

Is the repair complete?

--

Go to Exterior Lights System Check

--

3

  1. Turn the ignition to the RUN position.
  2. Use a test lamp in order to backprobe between C201 terminal E8 and ground.

Did the test lamp light?

--

Go to Step 5

Go to Step 4

4

Repair the following conditions in CKT 1840:

    • A faulty connection
    • An open circuit

Is the repair complete?

--

Go to Exterior Lights System Check

--

5

Replace the turn signal switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column-Tilt.

Is the repair complete?

--

Go to Exterior Lights System Check

--