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Check Refrigerant Leak Using Fluorescent Leak Detection Dye

WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
G05915549Courtesy of NISSAN NORTH AMERICA, INC.
  1. Install a fender cover (1).
  2. Wear UV safety goggles (2) provided with refrigerant dye leak detection kit.
  3. Connect power cable (4) of UV lamp (6) to positive and negative terminals of the battery (3).
  4. Press UV lamp switch (5) and check A/C system for refrigerant leaks. (Where refrigerant leak occurs, fluorescent leak detection dye appears in green color.)
    WARNING: Do not look directly into UV lamp light source.
    NOTE:
    • For continuous operating time of UV lamp, follow the manufacturer operating instructions.
    • Illuminate piping joints from different angles using UV lamp and check that there is no leak.
    • Use a mirror in areas that are difficult to see and check for refrigerant leaks.
    • Refrigerant leaks from evaporator can be detected by soaking a cotton swab or a similar material with drain hose water and illuminating it using UV lamp.
    • Dust, dirt, and packing material adhesive used for condenser, evaporator, and other locations may fluoresce. Be careful not to misidentify leak.
  5. Repair or replace parts where refrigerant leak occurs and wipe off fluorescent leak detection dye.
    NOTE: Completely wipe off fluorescent leak detection dye from gaps between parts, screw threads and other components using a cotton swab or similar material.
  6. Use a UV lamp to check that no fluorescent leak detection dye remains after finishing work.
    WARNING: Do not look directly into UV lamp light source.
    NOTE:
    • For continuous operating time of UV lamp, follow the manufacturers operating instructions.
    • Dust, dirt, and packing material adhesive used for condenser, evaporator, and other locations may fluoresce. Be careful not to misidentify leak.