GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the HVAC Compressor Controls System Check performed?

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Go to Step 2

Go to HVAC Compressor Controls System Check

2

  1. Start the engine.
  2. Turn the A/C off.

Does the air conditioning (A/C) compressor clutch engage?

--

Go to HVAC Compressor Clutch Does Not Disengage

Go to Step 3

3

Remove the A/C 2 condenser fan relay.

Does the A/C condenser fan motor stop running?

--

Go to Step 4

Go to Step 5

4

Replace the A/C 2 condenser fan relay. Refer to Condenser Fan Relay Replacement .

Is the repair complete?

--

Go to HVAC Compressor Controls System Check

--

5

Repair the short to voltage in the BLU/BLK or the RED/BLU wire between the A/C 2 condenser fan relay and the A/C condenser fan motor. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to HVAC Compressor Controls System Check

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