GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the HVAC Blower Control System Check?

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Go to Step 2

Go to HVAC Blower Controls System Check

2

  1. Turn the ignition switch to ON.
  2. Turn the mode selector to VENT.
  3. Disconnect the blower resistor connector.
  4. Connect the fused jumper between terminal C of the blower resistor harness connector and ground.

Does the blower motor operate?

--

Go to Step 3

Go to Step 4

3

Replace the blower resistor.

Did you complete the repair?

--

Go to HVAC Blower Controls System Check

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4

Repair the open in CKT 52 between the blower resistor and S124. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

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Go to HVAC Blower Controls System Check

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