Blower Motor Operates at High Speed Only. Chevrolet Metro 1998

For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the Heater Blower Controls System Check performed? | -- | Go to Step 2 | Go to Heater Blower Controls 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 blower motor resistor connector 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. Was an open found? | -- | 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 Heater Blower Controls System Check | --
5 | Replace the blower motor resistor. Refer to Blower Motor Resistor Replacement . Is the repair complete? | -- | Go to Heater Blower Controls System Check | --
6 | Replace the blower speed selector switch. Refer to Blower Switch Replacement . Is the repair complete? | -- | Go to Heater Blower Controls System Check | --