Error Code: PO453

[Nas_RS]

Hello,

Can someone help how to resolve Error Code: P0453, check engine light in on..please help.

P0453: Evaporative Emission Control System Pressure Sensor High Input

[CTScott]

That indicates an issue within the evaporative canister back by the gas tank. P0453 could be caused by any of the following:

Canister pump module
• Connector/wire
harness
(Canister pump
module - ECM)
• EVAP system hose
(pipe from air inlet port
to canister pump
module, canister filter,
fuel tank vent hose)
• ECM

Look at page 207 of the Engine Control section of the service manual and work your way down from there for instructions on how to determine what the actual problem is:

http://www.microimageonline.com/forums/showthread.php/4232-YARIS-FILES

[Nas_RS]

Hi ..
The Fuel Pump and filter were replaced to new still the error is here, where is the canister situated can it be repair, the ECU is a new one

[Nas_RS]

do you know where the CANISTER PUMP MODULE is? please

[CTScott]

It is the rectangular box circled in the picture below:


46100

[Nas_RS]

i check mine today, there is no box like in the picture, there only the small box

[Nas_RS]

Please find Pics

[Nas_RS]

does anybody know how to solve? thx

[CTScott]

I now see why yours lacks the evaporative canister.

Here is the system on yours:
50376

Here is what ours looks like:
50377

I would suggest disconnecting the charcoal filter (the little box on the rear left of your picture above) and verifying that it is not fuel or water saturated.

[Nas_RS]

Hello Scott, do you where around it will be, i am not able to locate it from the diagram

[Nas_RS]

I am able to remove the little box, how to open it, please

[Nas_RS]

Scott i need this box to be replace, can you get me one, email naseemkhoodaruth@gmail.com

[Astroman]

Moved this thread to the maintenance section.

[YarisSedan]

Its most likely a bad fuel tank pressure sensor. I believe its a 2 wire sensor thats located somewhere on top of the gas tank thats pressed in. Never changed one on a yaris but typically thats the most common for that code. That or a stuck closed canister purge valve.

[CTScott]

Its most likely a bad fuel tank pressure sensor. I believe its a 2 wire sensor thats located somewhere on top of the gas tank thats pressed in. Never changed one on a yaris but typically thats the most common for that code. That or a stuck closed canister purge valve.

The Yaris doesn't have a fuel tank pressure sensor and the OP's JDM Vitz lacks a canister purge valve, like USDM Yaris have.