Section 12 (Emission Control System (2TR-FE)): Canister: Inspection

WARNING: This page is about a different car, the 2007 Toyota Tacoma. 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 and damage.
  If cracks and damage are found, replace the charcoal canister assy.
  
  Fig 1: Checking Charcoal Canister For Cracks & Damage
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the charcoal canister operation.
  1. While holding the purge port closed, blow air of 1.67 kPa (17.0 gf/cm² , 0.24 psi) into the vent port, and check that the air flows from the air inlet port.
    If the result is not as specified, replace the charcoal canister assy.
    
    Fig 2: Checking Air Flows From Air Inlet Port
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. While holding the vent port closed, apply a vacuum of 1.10 kPa (8.3 mmHg, 0.32 in.Hg) into the purge port, and check that the air flows from the air inlet port.
    If the result is not as specified, replace the charcoal canister assy.
    
    Fig 3: Checking Air Flows From Air Inlet Port
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check for air leakage.
  1. Remove the air hose between ports A and B.
    
    Fig 4: Removing Air Hose Between Ports A & B
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Connect the pressure gauge to the vent port of the charcoal canister.
    SST 09992-00242
  3. While holding port B, the purge port and air inlet port closed and port A open, apply pressurized air of 19.6 kPa (0.2 kgf/cm² , 2.81 psi) into the vent port. Then confirm that the pressure is retained.
    If the result is not as specified, replace the charcoal canister assy.
    
    Fig 5: Connecting Pressure Gauge To Vent Port Of Charcoal Canister
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. 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 charcoal canister (pump module).
    
    Fig 6: Checking Air Flows From Port A To Ports B & C
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Apply battery positive voltage across the terminals.
  3. Check that the valve is closed.
    If the result is not as specified, replace the charcoal canister (pump module).
    
    Fig 7: Applying Battery Positive Voltage Across Terminals
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002