Section 532 (Emission Control): Canister: Inspection

WARNING: This page is about a different car, the 2007 Lexus RX 350. 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.
  If cracks or damage are found, replace the charcoal canister assembly.
2. Check charcoal canister operation.
  
  Fig 2: Checking Charcoal Canister Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. With the purge port closed, blow 1.10 kPa (11.2 gf/cm² , 0.16 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) of air into the air inlet port, and check that air flows from the purge port. If the result is not as specified, replace the charcoal canister assembly.
    
    Fig 3: Checking Air Flows From Purge Port
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check for air leakage.
  
  Fig 4: Checking Air Flows From Purge Port
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. With the purge port and air inlet port closed, apply 19.6 kPa (0.2 kgf/cm² , 2.81 psi) of pressurized air into the vent port, then confirm that pressure is retained for 1 minute. If the result is not as specified, replace the charcoal canister assembly.
4. Check the leak detection pump.
  1. Remove the detection pump from the charcoal canister.
  2. Check that air flows from port A to B.
    If the result is not as specified, replace the charcoal canister assembly.
  3. Connect the positive (+) lead of the battery to terminal 7 and the negative (-) lead to terminal 6.
  4. Check that the valve is closed.
    If the result is not as specified, replace the charcoal canister assembly.
  5. Install the detection pump.