Section 168 (Emission Control System (Service Information)): Canister: Inspection: Inspection

WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT CHARCOAL CANISTER ASSEMBLY
1. Visually check the charcoal canister for cracks or damage.
  
  Fig 1: Checking Charcoal Canister For Cracks Or Damage
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If cracks or damage are found, replace the charcoal canister assembly.
2. Check charcoal canister operation.
  
  Fig 2: Checking Air Flows From Air Inlet Port
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. With the purge port closed, blow 1.67 kPa (17.0 gf/cm² , 0.24 psi) of air into the vent port, and check that air flows from the air inlet port.
    If the result is not as specified, replace the charcoal canister assembly.
  2. With the vent port closed, blow 1.10 kPa (11.2 gf/cm² , 0.16 psi) air to the air inlet port, and check that air flows from the purge port.
    
    Fig 3: Checking Air Flows From Purge Port
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    If the result is not as specified, replace the charcoal canister assembly.
3. Check for air leakage.
  
  Fig 4: Checking For Air Leakage
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Remove the air hose between ports A and B.
  2. Connect the pressure gauge to the vent port of the charcoal canister.
    - SST: 09992-00242
  3. While holding port B, with the purge port and the air inlet port closed and port A open, apply pressurized air 19.6 kPa (0.2 kgf/cm² , 2.81 psi) into the vent port, then confirm that the pressure is retained for 1 minute.
    If the result is not as specified, replace the charcoal canister assembly.
4. Check the leak detection pump.
  
  Fig 5: Checking Air Flows From Port A To B And C
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Remove the detection pump from the charcoal canister.
  2. Check that air flows from port A to B and then C.
    If the result is not as specified, replace the charcoal canister assembly.
  3. Connect the positive (+) lead to terminal 7 and the negative (-) lead to terminal 6.
    
    Fig 6: Checking If Valve Is Closed
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. Check that the valve is closed.
    If the result is not as specified, replace the charcoal canister assembly.
  5. Install the detection pump.