Blower Motor Operates at High Speed Only. Chevrolet Metro 2001

For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
1 | Was the HVAC System Check performed? | Go to Step 2 | Go to HVAC System Check

2

1. Turn the ignition switch to the ON position.
2. Move the blower speed selector switch to the LOW position.
3. Backprobe the connector of the blower motor resistor with a test lamp from terminal 4 to ground.

Does the test lamp light?

Go to Step 3

Go to Step 6

3 | Test for an open in the PNK wire between the blower motor resistor and S232. Is an open present? | Go to Step 4 | Go to Step 5
4 | Repair the open in the PNK wire between the blower motor resistor and S232. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | Go to HVAC System Check | --
5 | Replace the blower motor resistor. Refer to Blower Motor Resistor Replacement . Is the repair complete? | Go to HVAC System Check | --
6 | Replace the blower speed selector switch. Refer to Control Assembly Replacement . Is the repair complete? | Go to HVAC System Check | --