Section 206 (Emission Control System (1ZZ-FE)): Canister: Inspection

WARNING: This page is about a different car, the 2008 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT CANISTER
1. Visually check the canister for cracks and damage.
  If cracks or damage are found, replace the canister.
  
  Fig 1: Locating Canister Connection
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the canister operation.
  1. While holding the purge port closed, blow air at 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 If Air Flows From Air Inlet Port
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. While holding the air inlet port closed, blow air at 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 If Air Flows From Purge Port
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. While holding the air inlet port closed, apply vacuum at 3.43 kPa (35.0 kgf/cm² , 25.7 mmHg) into the vent port, and check that air is sucked into the purge port.
    If the result is not as specified, replace the canister.
    
    Fig 4: Checking If Air Is 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 at 3.43 kPa (35.0 kgf/cm² , 25.7 mmHg) into 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 at 1.42 kPa (14.5 kgf/cm² , 10.6 mmHg) into port A, and check that air is not sucked into port B.
    
    Fig 6: Checking If Air Is Not Sucked Into Port B
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. While holding the vent, purge and air inlet ports closed, apply vacuum at 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 Into Port A
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Check the leak detection pump.
  1. Check that air flows from port A to ports B and C.
    If the result is not as specified, replace the canister.
    
    Fig 8: Checking If Air Flows From Port A To Ports B & 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: Identifying Canister Pump Module Connector Terminals
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002