EVAP Leak Detection Pump Check

Reference: EVAP LEAK CHECK MODULE REMOVAL AND INSTALLATION 

1. Check EVAP leak detection pump in EVAP leak check module as follows.
   1. Connect a spherical plastic bag (1) with approximately 12.5 cm (4.92 in.) diameter (volume: 1L) to EVAP leak check module using a rubber band (2) as shown in figure.
   2. Operate EVAP canister vent valve and EVAP leak detection pump by connecting 12 V-battery to EVAP leak check module terminals as shown in figure.
   3. Check that air in plastic bag is fully evacuated by EVAP leak detection pump within approximately 2 minutes.

      If check result is not as described above, replace EVAP leak check module.

      CAUTION: Make sure that connection is made between correct terminals. Wrong connection can cause damage to EVAP canister vent valve and EVAP leak detection pump in EVAP leak check module.
      Fig 1: Checking EVAP Leak Detection Pump

      Courtesy of SUZUKI OF AMERICA CORP.