GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Exterior Lights System Check?

--

Go to Step 2

Go to Exterior Lights System Check

2

  1. Backprobe the hazard switch connector with a test lamp betwen terminal G and ground.
  2. Turn the ignition switch to the ON position.
  3. Turn the right turn signal ON.

Does the test lamp flash?

--

Go to Step 3

Go to Step 4

3

Replace the hazard switch. Refer to Hazard Flasher Switch Replacement in Instrument Panel, Gauges and Console.

Is the repair complete?

--

Go to Exterior Lights System Check

--

4

Repair the open in CKT 15 between the hazard switch and the right IP wiring harness junction block. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Exterior Lights System Check

--

Step

Action

Value(s)

Yes

No

1

Did you perform the Exterior Lights System Check?

--

Go to Step 2

Go to Exterior Lights System Check

2

  1. Disconnect the hazard switch connector.
  2. Connect a test lamp between terminal B of the hazard switch connector and ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

Connect a test lamp between terminal B and terminal A of the hazard switch connector.

Does the test lamp light?

--

Go to Step 5

Go to Step 6

4

Backprobe the left IP junction block connector C1 with a test lamp between terminal C12 and ground.

Does the test lamp light?

--

Go to Step 7

Go to Step 8

5

Replace the hazard switch. Refer to Hazard Flasher Switch Replacement in Instrument Panel, Gauges and Console.

Is the repair complete?

--

Go to Exterior Lights System Check

--

6

Repair the open in CKT 150 between the hazard switch and ground splice pack G201. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Exterior Lights System Check

--

7

Repair the open in CKT 1140 between the hazard switch and the left IP junction block. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Exterior Lights System Check

--

8

Replace the left IP junction block. Refer to Relay/Fuse Center Replacement in Wiring Systems.

Is the repair complete?

--

Go to Exterior Lights System Check

--