Section 9 (Emission Control System (1AR-FE)): Canister: Inspection

WARNING: This page is about a different variant/trim than selected.

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.
  
  Fig 1: Checking Charcoal Canister For Cracks Or Damage
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check charcoal canister operation.
  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.
    
    Fig 2: Checking Charcoal Canister Operation - Purge Port Closed
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  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 Charcoal Canister Operation - Vent Port Closed
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check for air leakage.
  1. Connect SST (pressure gauge) to the vent port of the charcoal canister assembly.
    SST 09992-00242
  2. With the purge port and air inlet port closed, apply 20 kPa (150 mmHg, 5.91 in.Hg) 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 canister pump module.
  1. Remove the canister pump module.
    
    Fig 4: Checking Canister Pump Module
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Check that air flows from port A to port B and C.
    If the result is not as specified, replace the charcoal canister assembly.
    
    Fig 5: Checking Air Flows From Port A To Port B And C
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  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 canister pump module.
  Fig 6: Checking Valve Is Closed
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002