Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the HVAC Blower Controls System Check performed? | -- | Go to Step 2 | Go to HVAC System Check |
2 | Backprobe the blower speed selector switch connector with a test lamp from cavity 1 to chassis ground. Does the test lamp light? | -- | Go to Step 4 | Go to Step 3 |
3 | Repair the open in the LT GRN wire between fuse block 2 and the blower speed selector switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to HVAC System Check | -- |
4 |
Does the test lamp light? | -- | Go to Step 6 | Go to Step 5 |
5 | Replace the blower speed selector switch. Refer to Blower Switch Replacement . Is the repair complete? | -- | Go to HVAC System Check | -- |
6 | Backprobe the blower motor connector with a test lamp from cavity 2 to chassis ground. Does the test lamp light? | -- | Go to Step 8 | Go to Step 7 |
7 | Repair the open in the PNK wire between the blower motor and the blower speed selector switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to HVAC System Check | -- |
8 |
Is the resistance less than the specified value? | 3 ohms | Go to Step 9 | Go to Step 10 |
9 | Replace the blower motor. Refer to Blower Motor and Fan Replacement . Is the repair complete? | -- | Go to HVAC System Check | -- |
10 | Repair the open in the BLK wire between the blower motor and G201. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to HVAC System Check | -- |
