Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Has the Defogger System Check been performed? | -- | Go to Step 2 | Go to Defogger System Check |
2 |
Does the test lamp light? | -- | Go to Step 3 | Go to Step 4 |
3 | Refer to Defogger Grid Lines Diagnosis . Is the repair complete? | -- | Go to Defogger System Check | |
4 |
Does the test lamp light? | -- | Go to Step 5 | Go to Step 6 |
5 | Locate and repair open in CKT 293 (PPL) between C222 and the rear window defogger grid connector. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Defogger System Check | -- |
6 |
Does the test lamp light? | -- | Go to Step 7 | Go to Step 8 |
7 | Locate and repair open in CKT 293 (PPL) between the HVAC control module connector and the convenience center. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Defogger System Check | -- |
8 | Connect a test lamp between cavity A of the HVAC control module connector C1 and ground. Does the test lamp light? | -- | Go to Step 9 | Go to Step 10 |
9 | Replace the HVAC control module. Refer to Control Assembly Replacement in HVAC Systems with A/C Manual. Is the repair complete? | -- | Go to Defogger System Check | -- |
10 | Locate and repair open in CKT 1440 (ORN) between the HVAC control module connector C1 and the underhood fuse block. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Defogger System Check |
