A/C System Inspection
  1. Check that the A/C compressor clutch (A) is engaged. The pressure plate should be rotating at the same speed as the pulley.
  1. Check that the cooling fans (B) operate when the A/C compressor clutch is engaged.
  1. Check that the engine idle speed is correctly maintained when the A/C is switched on and off when the A/C compressor clutch is engaged and disengaged.