Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000YQVH
Model Year Start: 2017 Model: Sienna Prod Date Range: [08/2016 -           ]
Title: 2GR-FKS EMISSION CONTROL: CANISTER: INSPECTION; 2017 - 2020 MY Sienna [08/2016 -        ]

INSPECTION

PROCEDURE

1. INSPECT CANISTER (CHARCOAL CANISTER ASSEMBLY)

(a) Visually check the canister (charcoal canister assembly).

(1) Visually check the canister (charcoal canister assembly) for cracks or damage.

If cracks or damage are found, replace the canister (charcoal canister assembly).

(b) Check canister (charcoal canister assembly) operation.

(1) With the purge port closed, blow 0.5 kPa (0.005 kgf/cm2, 0.1 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 canister (charcoal canister assembly).

*a

Vent Port

*b

Air Inlet Port

*c

Purge Port

*d

Air

(2) With the vent port closed, blow 0.5 kPa (0.005 kgf/cm2, 0.1 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 canister (charcoal canister assembly).

*a

Vent Port

*b

Air Inlet Port

*c

Purge Port

*d

Air

(c) Check for air leaks.

(1) Connect a pressure gauge to the vent port of the canister (charcoal canister assembly).

*a

Vent Port

*b

Air Inlet Port

*c

Purge Port

*d

Pressure Gauge

*e

Charcoal Canister Leak Detection Pump Sub-assembly Connector

(2) With the purge port and the 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 canister (charcoal canister assembly).

2. INSPECT CHARCOAL CANISTER LEAK DETECTION PUMP SUB-ASSEMBLY

(a) Check the charcoal canister leak detection pump sub-assembly.

(1) Check that air flows from port A to port B.

If the result is not as specified, replace the charcoal canister leak detection pump sub-assembly.

*a

Air

*b

Port A

*c

Port B

(2) Connect a positive (+) battery lead to terminal 5 and a negative (-) battery lead to terminal 1.

*a

Component without harness connected

(Canister (Charcoal Canister Assembly))

(3) Check that a clicking sound is heard from the charcoal canister leak detection pump sub-assembly.

If the result is not as specified, replace the charcoal canister leak detection pump sub-assembly.