For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the HVAC Blower Controls System Check performed? | -- | Go to Step 2 | Go to HVAC Blower Controls System Check
2 |

1. Turn the ignition switch to the OFF position.
2. Disconnect the blower speed selector switch connector.
3. Turn the ignition switch to the ON position.

Does the blower motor stop running?

--

Go to Step 3

Go to Step 4

3 | Replace the blower speed selector switch. Refer to Control Assembly Replacement . Is the repair complete? | -- | Go to HVAC Blower Controls System Check | --
4 | Backprobe the blower motor connector with a test lamp from terminal 2 to ground. Does the test lamp light? | -- | Go to Step 5 | Go to Step 6
5 | Repair the short to voltage in the PNK wire between the following components:

• | The blower motor

• | The blower motor resistor

• | The blower speed selector switch

Is the repair complete?

--

Go to HVAC Blower Controls System Check

--

6 | Backprobe the blower motor resistor connector with a test lamp from terminal 1 to ground. Does the test lamp light? | -- | Go to Step 7 | Go to Step 8
7 | Repair the short to voltage in the PNK/BLU wire between the blower motor resistor and the blower speed selector switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to HVAC Blower Controls System Check | --
8 | Backprobe the blower motor resistor connector with a test lamp from terminal 3 to ground. Does the test lamp light? | -- | Go to Step 9 | Go to Step 10
9 | Repair the short to voltage in the PNK/GRN wire between the blower speed selector switch and the blower motor resistor. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to HVAC Blower Controls System Check | --
10 | Repair the short to voltage in the PNK/BLK wire between the blower speed selector switch and the blower motor resistor. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to HVAC Blower Controls System Check | --