The A/C compressor clutch will not engage but the technician finds normal battery voltage at the compressor clutch connector.Which of the following is the most likely cause?
A) A faulty A/C control switch.
B) Low oil level in the A/C compressor.
C) Too great a compressor clutch air gap.
D) A compressor clutch relay stuck in the closed position.

Question

Quizplus · Accepted Answer

If there is normal battery voltage at the compressor clutch connector but the clutch is not engaging, the most likely cause is a too great compressor clutch air gap. This can prevent the clutch from properly engaging with the compressor shaft, even when there is sufficient voltage to the system. Other issues, such as a faulty A/C control switch, low oil level in the A/C compressor, or a compressor clutch relay stuck in the closed position might also cause similar symptoms, but they are less likely in this scenario.

The A/C Compressor Clutch Will Not Engage but the Technician