[Battery Pack Air Tightness Test] Conditions That May Trigger the "Air Vent Check" Message

Symptom:

The "Air Vent Check" message may appear in the diagnostic application under the following conditions:

1. The pressure regulator is missing from the air injection adapter mounting location on the EV battery pack upper case.
   • Corrective action: Install the pressure regulator correctly.
2. The silicone O-ring is missing from the bottom of the air injection adapter.
   • Corrective action: Install the silicone O-ring in the correct position and remove any foreign material from the sealing surface.
3. The battery pack injection port (pressure regulator) installed on the battery pack upper case is improperly assembled and is not seated correctly against the bottom surface.
   • Cause: The pressure regulator may be clogged with foreign material or improperly assembled.

   • Corrective action: Remove any foreign material from the battery pack injection port (pressure regulator) mounting area and replace it with a new part if necessary.