Rear Window Defogger Inoperative. Pontiac Sun Runner - 4WD (Canada) 1998

For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the Defogger System Check Performed? | -- | Go to Step 2 | Go to Defogger System Check
2 | Turn the ignition switch to ON. Press the rear defogger switch to ON. Does the indicator lamp light? | -- | Go to Step 6 | Go to Step 3

3

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

Did the test lamp light?

--

Go to Step 4

Go to Step 5

4 | Replace the Rear Defogger Switch. Refer to Rear Window Defogger Switch Replacement . Is the repair complete? | -- | Go to Defogger System Check | --
5 | Repair the open in the YEL/GRN wire between cavity 1 of the Rear Defogger Switch and the REAR DEFG Fuse located in Fuse Block 2. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Defogger System Check | --

6

1. Turn the ignition switch to OFF.
2. Disconnect the RED/WHT connector to the rear defogger.
3. Turn the ignition switch to ON.
4. Press the rear defogger switch to ON.
5. Connect a J 35616-200 between the RED/WHT cavity of the rear defogger connector and ground.

Did the test lamp light?

--

Go to Step 7

Go to Step 8

7

1. Turn the ignition switch to OFF.
2. Disconnect the BLK wire connector from the rear defogger.
3. Using a J 39200 , test for continuity between the BLK wire connector of the rear defogger and ground .

Is there continuity?

--

Go to Step 9

Go to Step 10

8 | Repair the open RED/WHT wire between the rear defogger connector and cavity 2 of the rear defogger switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Defogger System Check | --
9 | Repair the rear defogger. Refer to Gridline Repair. Is the repair complete? | -- | Go to Defogger System Check | --
10 | Repair the open in the BLK wire connector of the rear defogger and ground G400. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Defogger System Check | --