GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Cavalier 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Blower Motor High Speed Inoperative

Step

Action

Value(s)

Yes

No

1
  1. Turn the ignition switch to ON.
  2. Turn the mode selector to VENT.
  3. Turn the blower switch to HIGH.
  4. Disconnect the heater-a/c and rear defogger control assembly harness connector C2.
  5. Connect the fused jumper between terminal D of the heater-a/c and rear defogger control assembly harness connector C2 and ground.

Does the blower motor operate?

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Go to Step 2

Go to Step 3

2

Replace the blower switch.

Did you complete the repair?

--

Go to HVAC Blower Controls System Check

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3

Repair the open in CKT 52 between S124 and the heater-a/c and rear defogger control assembly. 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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