GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the entire HVAC System Check performed?

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Go to Step 2

Go to HVAC System Check

2

  1. Turn the ignition switch to the RUN position.
  2. Turn both rear blower switches to the OFF position.
  3. Disconnect the rear window wiper/washer and multi-function switch connector C2.

Does the rear blower turn off?

--

Go to Step 3

Go to Step 4

3

Replace the rear window wiper/washer and multi-function switch. Refer to Auxiliary Air Conditioning (A/C) Control Assembly Replacement - Front .

Is the repair complete?

--

Go to Step 5

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4

Repair a short to B+ in circuit 1176, 1072, or 1052.

Is the repair complete?

--

Go to Step 5

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5

  1. Turn the ignition switch to the OFF position.
  2. Reconnect all connectors /components removed.

Have all the repairs been made?

--

Go to HVAC System Check

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