Verify the symptom.

Does the A/C compressor clutch remain continuously engaged with the A/C switch in the OFF position?

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Go to

Step 2

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1. Disconnect the A/C compressor clutch harness connector from the A/C compressor.
2. Place the A/C on/off switch on the A/C mode switch to the OFF position.
3. Place the fan control switch in the OFF position.
4. Start the engine and maintain at approximately 1000 rpm.

Does the A/C compressor clutch disengage?

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Go to Step 3

Go to Step 4

1. Turn the engine OFF.
2. Place the ignition switch in the RUN position.
3. Remove the harness connector from the A/C pressure cutoff switch.
4. Connect a J39200 between terminal 4 in the A/C pressure cutoff switch harness connector and chassis.

Does the DMM indicate continuity?

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Go to Step 5

Go to Step 6

Replace the A/C compressor clutch. Refer to Compressor Magnetic Clutch .

Is the repair complete?

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System OK

Go to Step 3

Locate and repair short to B positive in CKT 59 (DK GRN) between terminal 4 in the A/C pressure cutoff switch harness connector and the A/C compressor clutch harness connector.

Is the repair complete?

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System OK

Go to

Step 6

Repair or replace the A/C pressure cutoff switch.

Is the repair complete?

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System OK

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