Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you review the HVAC operation and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms |
2 | Inspect the FRONT HVAC Fuse at the Underhood Fuse Block. Is the fuse operational? | -- | Go to Step 4 | Go to Step 3 |
3 |
Did you complete the repair? | -- | Go to Step 13 | -- |
4 | Using a test lamp backprobe between CKT 340 (ORN) cavity A to ground. Does the test lamp illuminate? | -- | Go to Step 6 | Go to Step 5 |
5 | Repair open in CKT 340 (ORN). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 13 | -- |
6 |
Does the test lamp illuminate? | -- | Go to Step 8 | Go to Step 7 |
7 | Repair open in CKT 350 (BLK). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 13 | -- |
8 |
Does the test lamp illuminate? | -- | Go to Step 9 | Go to Step 10 |
9 | Replace the blower motor resistor and relay pack. Refer to Blower Motor Resistor Replacement in Heating, Ventilation, and Air Conditioning. Did you complete the replacement? | -- | Go to Step 13 | -- |
10 | Using a test lamp backprobe from the heater and A/C control module connector C2 CKT 52 (ORN) cavity D to ground. Does the test lamp illuminate? | -- | Go to Step 11 | Go to Step 12 |
11 | Repair the open in CKT 52 (ORN). Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 13 | -- |
12 | Replace the heater and A/C control module. Refer to Control Assembly Replacement in Heating, Ventilation, and Air Conditioning. Did you complete the replacement? | -- | Go to Step 13 | -- |
13 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
