GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Does the air conditioning compressor clutch engage?

--

System OK

Go to Step 2

2

  1. Turn the ignition switch to the OFF position.
  2. Disconnect the compressor clutch.
  3. Connect a fused jumper wire between B+ and the clutch coils. Refer to Using Fused Jumper Wires in Wiring Systems.

Does the clutch engage?

--

Go to Step 4

Go to Step 3

3

Replace the A/C compressor coil. Refer to Compressor Clutch Coil Removal (V5 - Conventional Mount) .

Is the repair complete?

--

System OK

--

4

Repair the electrical circuit. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

System OK

--