GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you review the HVAC system operation and perform the necessary inspections?

--

Go to Step 2

Go to Symptoms

2

Replace the blower motor resistor. Refer to Blower Motor Resistor Replacement .

Is the repair complete?

--

Go to Step 3

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3

Verify that the system operates properly.

Does the system operate properly?

--

System OK

Go to Symptoms