Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you review the Stationary Windows Description and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms |
2 |
Does the rear defogger indicator illuminate? | -- | Go to Step 3 | |
3 | Use a test lamp in order to backprobe CKT 293 (PPL) at the HVAC control module connector C1 to ground. Does the test lamp illuminate? | -- | Go to Step 5 | Go to Step 4 |
4 | Replace the HVAC control module. Refer to Control Assembly Replacement in Heating, Ventilation and Air Conditioning. Did you complete the replacement? | -- | Go to Step 10 | -- |
5 |
Is there continuity between the components? | -- | Go to Step 7 | Go to Step 6 |
6 | Locate and repair an open or a short to ground in CKT 293 (PPL) between the HVAC control module connector and the rear defogger grid. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 10 | -- |
7 |
Is there continuity between the components? | -- | Go to Step 8 | Go to Step 9 |
8 | Repair the defogger grid(s) as needed. Did you complete the repair? | -- | Go to Step 10 | -- |
9 | Repair an open in the ground circuit between the rear defogger grid ground connector and G403. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 10 | -- |
10 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
