Test B: A/C Compressor Clutch Test

1. Conduct this test with the A/C Compressor Control Relay removed and a fused jumper connected between terminals B and D of the harness connector. Leave the jumper connected for the remainder of the A/C Compressor Clutch Test.
2. Use a test lamp to check the voltage to ground at terminals A and B of the A/C Compressor Clutch.

Test B A/C Compressor Clutch Test:

^ If tests are good, proceed to step 3.
^ If the test lamp does not light at terminal A, repair open in DK GRN wire (59).

3. Temporarily connect a fused jumper from terminal B of the A/C Compressor Clutch to ground.

^ If clutch does not engage, replace Compressor Clutch Coil.
^ If clutch engages, make the following tests:

- Remove the connector from the A/C High Pressure Cut-Out Switch and jumper terminals A and B of the harness connector. If clutch engages, replace A/C High Pressure Cut-Out Switch.
- Check for an open in the DK BLU wire (204) or the BLK wire (150).
- Check that connections at the Negative Junction Block are clean and tight.