GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Fog Lights System Check performed?

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Go to Step 2

Go to Fog Lights System Check

2

  1. Turn the headlamp switch to the HEAD position.
  2. Connect an unpowered test lamp from rear fog lamp switch cavity A to ground.

Did the test lamp light?

--

Go to Step 3

Go to Step 4

3

Connect an unpowered test lamp from rear fog lamp switch cavity A to cavity B.

Did the test lamp light?

--

Go to Step 5

Go to Step 6

4

Repair the open in CKT 8 (GRY) between the rear fog lamp switch and the IP fuse block.

Is the repair complete?

--

Go to Fog Lights System Check

--

5

Replace the rear fog lamp switch.

Is the repair complete?

--

Go to Fog Lights System Check

--

6

Repair the open in CKT 150 (BLK) between the rear fog lamp switch and ground G201.

Is the repair complete?

--

Go to Fog Lights System Check

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