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HVAC Compressor Clutch Does Not Disengage

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
HVAC Compressor Clutch Does Not Disengage

Step Action Yes No
Schematic Reference: HVAC Schematics 
Connector End View Reference: HVAC Connector End Views 
1 Did you review the Air Delivery Description and Operation  and the Air Temperature Description and Operation  and perform the necessary inspections? Go to Step 2  Go to Symptoms - HVAC Systems - Manual 
2
  1. Start the engine.
  2. Turn the A/C switch to the OFF position.
  3. Turn the blower switch to any position except OFF.
Does the A/C compressor clutch disengage?		 Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3 Remove the A/C compressor clutch relay from the underhood fuse block.
Does the A/C compressor clutch disengage?		 Go to Step 5  Go to Step 4 
4 Repair the short to voltage in the A/C compressor clutch supply voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?		 Go to Step 11  -
5 Test the A/C compressor clutch relay. The switch should be normally open between terminals 1 and 3.
Did the relay test OK?		 Go to Step 6  Go to Step 8 
6
  1. Turn the engine off.
  2. Install the A/C compressor clutch relay.
  3. Disconnect the A/C switch.
Does the A/C compressor clutch disengage?		 Go to Step 9  Go to Step 7 
7 Test the A/C compressor clutch relay control circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 11  Go to Step 10 
8 Replace the A/C compressor relay. Refer to Compressor Relay Replacement .
Did you complete the replacement?		 Go to Step 11  -
9 Replace the A/C switch. Refer to HVAC Control Assembly Replacement (Control Assembly) .
Did you complete the replacement?		 Go to Step 11  -
10 Replace the PCM. Refer to Powertrain Control Module (PCM) Replacement Engine-Engine Controls LNK or Powertrain Control Module (PCM) Replacement Engine-Engine Controls LV6.
Did you complete the replacement?		 Go to Step 11  -
11 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 3 
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