Control Canister: Inspection

INSPECT CANISTER
1. Visually check the canister for cracks or damage. If cracks or damage are found, replace the canister.
  
  Fig 1: Checking Canister For Cracks Or Damage
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the canister operation.
  1. While holding the purge port closed, blow air 0.39 kPa (4.0 kgf/cm² , 3 mmHg) into the vent port, and check that air flows from the air inlet port.
    If the result is not as specified, replace the canister.
    
    Fig 2: Checking That Air Flows From Air Inlet Port
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. While holding the air inlet port closed, blow air 0.39 kPa (4.0 kgf/cm² , 3 mmHg) into the vent port, and check that air flows from the purge port.
    If the result is not as specified, replace the canister.
    
    Fig 3: Checking That Air Flows From Purge Port
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. While holding the air inlet port closed, apply vacuum 3.43 kPa (35.0 kgf/cm² , 25.7 mmHg) to the vent port, and check that air is sucked into the purge port.
    
    Fig 4: Checking That Air Sucked Into Purge Port
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check the air tightness.
  1. While holding the vent and air inlet ports closed, apply vacuum 3.43 kPa (35.0 kgf/cm² , 25.7 mmHg) to the purge port, and check that the vacuum is maintained for 1 minute.
    If the result is not as specified, replace the canister.
    
    Fig 5: Checking Air Tightness
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Check the diaphragm.
  1. Remove the air hose between ports A and B.
  2. While holding the vent, purge and air inlet ports closed, apply vacuum 1.42 kPa (14.5 kgf/cm² , 10.6 mmHg) port A, and check that air is not sucked into port B.
    
    Fig 6: Checking Diaphragm
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. While holding the vent, purge and air inlet ports closed, apply vacuum 1.42 kPa (14.5 kgf/cm² , 10.6 mmHg) into port A, and measure how long it takes for the vacuum to drop.
    Vacuum drop time: 10 seconds or more
    
    If the result is not as specified, replace the canister.
    
    Fig 7: Applying Vacuum 1.42 kPa Into Port A
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Check leak detection pump.
  1. Check that air flows from port A to port B and C.
    If the result is not as specified, replace the canister.
    
    Fig 8: Checking That Air Flows From Port A To Port B And C
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Connect the positive (+) lead of the battery to terminal 7 and the negative (-) lead to terminal 6.
  3. Check that the valve is closed.
    If the result is not as specified, replace the canister.
  4. Install the canister pump module.
    
    Fig 9: Checking Leak Detection Pump
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002