Air Tightness Inspection

1. Remove drain plug and install chuck [SST: KV99111400] (A).
   WARNING: To prevent shock hazards, be sure to wear protective gear.
   Fig 1: Identifying Chuck (KV99111400)

   Courtesy of NISSAN MOTOR CO., U.S.A.
2. Install gauge [SST: KV99111400] (A).
   WARNING: To prevent shock hazards, be sure to wear protective gear.
   CAUTION: Handle the gauge carefully so that it will not drop.
   Fig 2: Identifying Gauge (KV99111400)

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Install service lock out plug or service plug.

   DANGER: 

   Touching high voltage components with using the appropriate protective equipment will cause electrocution. 

   Fig 3: Identifying Service Plug

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. Use vinyl tape (A) or similar means to seal the breather so that air does not enter it.
   WARNING: To prevent shock hazards, be sure to wear protective gear.
   Fig 4: Identifying Vinyl Tape On Breather

   Courtesy of NISSAN MOTOR CO., U.S.A.
5. Perform airtightness test by applying 1.6 kPa (0.016 bar, 0.0163 kg/cm² , 0.23 psi) of pressure inside the battery pack for approximately 1 minute.
   CAUTION:

   • When applying pressure, operate the air pump slowly.
   • Do not apply any pressure exceeding 1.6 kPa (0.02 bar, 0.0163 kg/cm² , 0.29 psi).

   Repair limit: 1.4 kPa (0.02 bar, 0.0204 kg/cm ²  , 0.29 psi) 

6. If the pressure rises above the limit value, use soapy water and check for leakage points.
   WARNING: To prevent shock hazards, be sure to wear protective gear.
   CAUTION: Never allow soapy water to contact the service plug.

Electric Equipotential Test

After installing the battery pack, measure the resistance between the ground bolt mating surface (A) and the high voltage harness connector flange (B).

Fig 5: Measuring Resistance Between Ground Bolt Mating Surface And High Voltage Harness Connector Flange

Courtesy of NISSAN MOTOR CO., U.S.A.

Standard: 0.1 Ω or less 

If the result deviates from the standard value, check the following items and repair malfunctioning parts

• Connection condition of ground bolts
• Rust on the mounting surface of ground bolts
• Paint, oil, and dust on the mounting surface of ground bolts