GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Defogger System Check Performed?

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Go to Step 2

Go to Defogger System Check

2

  1. Turn the ignition switch to ON.
  2. Disconnect the rear defogger switch connector.
  3. Connect a J 35616-200 between cavity 2 of the rear defogger switch connector and ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

Repair the short to voltage condition in the RED/WHT wire between cavity 2 of the Rear Defogger Switch and the Rear Defogger. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

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Go to Defogger System Check

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4

Replace the Rear Defogger Switch. Refer to Rear Window Defogger Switch Replacement .

Is the repair complete?

--

Go to Defogger System Check

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