Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the entire HVAC Blower Controls System Check performed? | -- | Go to Step 2 | |
2 |
Is the test light on? | -- | Go to Step 3 | Go to Step 12 |
3 |
Is the test light on? | -- | Go to Step 4 | Go to Step 5 |
4 |
Does the blower motor run? | -- | Go to Step 7 | Go to Step 6 |
5 | Replace the HVAC control selector switch. Refer to Control Assembly Replacement Has the repair been made? | -- | Go to Step 17 | -- |
6 |
Is the test light on? | -- | Go to Step 9 | Go to Step 8 |
7 | Replace the blower motor relay. Refer to Blower Motor Relay Replacement Is the repair complete? | -- | Go to Step 17 | -- |
8 |
Is test light on? | -- | Go to Step 11 | Go to Step 10 |
9 | Replace the blower motor. Refer to Blower Motor and Fan Replacement Is the repair complete? | -- | Go to Step 17 | -- |
10 | Repair the poor connection or open in CKT 65. Is the repair complete? | -- | Go to Step 17 | -- |
11 | Repair the poor connection or open in CKT 850. Is the repair complete? | -- | Go to Step 17 | -- |
12 | Backprobe the HVAC control selector switch between connector C2 terminal C and ground. Is the test light on? | -- | Go to Step 13 | Go to Step 15 |
13 | Inspect CKT 66 for an open or a poor connection at HVAC control selector switch C2 terminal B and terminal E. Does CKT 66 have an open or poor connection? | -- | Go to Step 16 | Go to Step 14 |
14 | Replace the HVAC control selector switch. Refer to Control Assembly Replacement Is the repair complete? | -- | Go to Step 17 | -- |
15 | Repair the open in CKT 241 between HVAC control selector switch and S248. Is the repair complete? | -- | Go to Step 17 | -- |
16 | Repair a poor connection or open in circuit 66. Is the repair complete? | -- | Go to Step 17 | -- |
17 |
Have all the repairs been made? | -- | -- |
