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 System Check
2 |

1. Move the blower speed selector switch to MEDIUM 2.
2. Backprobe the blower speed selector switch connector with a test lamp from cavity 6 to chassis ground.

Does the test lamp light?

--

Go to Step 4

Go to Step 3

3 | Replace the blower speed selector switch. Refer to Blower Switch Replacement . Is the repair complete? | -- | Go to HVAC System Check | --
4 | Backprobe the blower motor resistor connector with a test lamp from cavity 1 to chassis ground. Does the test lamp light? | -- | Go to Step 5 | Go to Step 6
5 | Repair the open 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 System Check | --
6 | Replace the blower motor resistor. Refer to Blower Motor Resistor Replacement Is the repair complete? | -- | Go to HVAC System Check | --