Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Defogger System Check? | -- | Go to Step 2 | Go to Defogger System Check |
2 | Use the scan tool in order to inspect for any DTCs (electronic climate control only). Are any DTCs present? | -- | Go to the Appropriate DTC | Go to Step 3 |
3 |
Does the rear window defogger remain ON? | -- | Go to Step 4 | Go to Step 7 |
4 | Remove the HTD MIR fuse from the UBEC. Does the rear window defogger remain ON? | -- | Go to Step 6 | Go to Step 5 |
5 | Repair the short to B+ in CKT 2267 (ORN) between the UBEC and the LH/RH rear view mirror. Is the repair complete? | -- | Go to Defogger System Check | -- |
6 | Repair the short to B+ in CKT 1093 (PPL) between the UBEC and endgate or liftgate defogger grid. Is the repair complete? | -- | Go to Defogger System Check | -- |
7 | Remove the starter relay in the underhood fuse block and substitute for the rear defogger relay. Is the rear defogger relay energized? | -- | Go to Step 8 | Go to Step 9 |
8 | Disconnect the heater and A/C control module connector or the electronic climate control module connector. Is the defogger relay energized? | -- | Go to Step 10 | Go to Step 11 |
9 | Replace the rear defogger relay. Is the repair complete? | -- | Go to Defogger System Check | -- |
10 | Repair a short to ground in CKT 193. Is the repair complete? | -- | Go to Defogger System Check | -- |
11 | Replace the heater and A/C control module or the electronic climate control module. Is the repair complete? | -- | Go to Defogger System Check | -- |
