Inspection [08/2015 - 08/2018]: Procedure

WARNING: This page is about a different car, the 2018 Toyota Sequoia, 2017 Toyota Sequoia, and 2016 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT CHARCOAL CANISTER ASSEMBLY

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Visually check the charcoal canister assembly for cracks or damage.

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

Check charcoal canister assembly operation.

With the purge port closed, blow 5 kPa (0.1 kgf/cm² , 0.7 psi) of air into the vent line port, and check that air flows from the air inlet line port.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TEXT IN ILLUSTRATION

*a	Vent Line Port
*b	Air Inlet Line Port
*c	Purge Line Port
*d	Air

If the result is not as specified, replace the charcoal canister assembly.

With the vent port closed, blow 5 kPa (0.1 kgf/cm² , 0.7 psi) of air into the air inlet line port, and check that air flows from the purge line port.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TEXT IN ILLUSTRATION

*a	Vent Line Port
*b	Air Inlet Line Port
*c	Purge Line Port
*d	Air

If the result is not as specified, replace the charcoal canister assembly.

Check for air leaks.

Connect a pressure gauge to the vent line port of the charcoal canister assembly.

TEXT IN ILLUSTRATION

*a	Vent Line Port
*b	Air Inlet Line Port
*c	Purge Line Port
*d	Pressure Gauge

With the purge line port and air inlet line port closed, apply 20 kPa (150 mmHg, 5.91 in.Hg) of pressurized air into the vent line port, and then confirm that pressure is retained for 1 minute.
If the result is not as specified, replace the charcoal canister assembly.

Check the canister pump module.

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

Check that a clicking sound is heard from the canister pump module.
If the result is not as specified, replace the canister pump module.