Disable ac on defrost setting - Toyota Yaris Forums

WeeYari · 06-19-2018, 03:11 PM

Simple search 'disable a/c'

One of the threads found is a D.I.Y.

However, the procedure is for a Gen2.

Sent from my Elite_5_5_Octa using Tapatalk

JDJanitor · 06-19-2018, 03:41 PM

Quote:

Originally Posted by WeeYari

Simple search 'disable a/c'

One of the threads found is a D.I.Y.

However, the procedure is for a Gen2.

Sent from my Elite_5_5_Octa using Tapatalk

I was reading that last night, mine is a later model.
I was hoping there was a trick without having to use a soldering iron for newer cars

Sent from my moto x4 using Tapatalk

sunsanvil · 08-27-2018, 08:33 AM

When we got our 2007 I worried/obsessed about this. Not wanting to mod the car in any way, I did nothing. I keep immaculate records though and honestly, the mileage in winter was in no notable way worse than our 00 Echo which had no A/C at all.

My understanding is that when it starts to get too cold out for the A/C to be able to cool the incoming air temp, the control circuit will get a low pressure reading from the A/C system (in combination with a crap load of other sensor data) and effectively turn if off anyway (even if you manually turn A/C on). In other words, the system is not stupid: it probably isn't trying to cool -40C air. :)

This is totally anecdotal on my part but after 12 years in Atlantic Canada, that 07's A/C worked as well as the day it rolled off the line, whereas I have many many memories of olders cars (without the A/C-Defroster relationship) which all seem to have A/C issues after 5 or 6 years.

06-19-2018, 03:11 PM	#1
WeeYari View User's Garage Drives: 06 5dr LE (deceased), 13 Soul Join Date: Oct 2008 Location: Georgetown, Ontario, Canada Posts: 5,828	Simple search 'disable a/c' One of the threads found is a D.I.Y. However, the procedure is for a Gen2. Sent from my Elite_5_5_Octa using Tapatalk __________________

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
PIONEER DEH-3950MP	husaynkhan	In Car Entertainment + Electronics (audio / video / alarm)	12	05-20-2010 02:01 AM
TRD rear sway bar...street or race setting?	detroiter	Wheels, Tires and Suspension Forum sponsored by The Tire Rack	14	02-08-2009 03:26 AM
Easy Defrost A/c running fix	billk	General Yaris / Vitz Discussion	14	01-16-2009 09:53 PM
Avoiding Defrost setting for long periods of time	GeneW	Fuel Economy Forum	1	12-24-2008 02:42 AM
Defrost.	Racheal	DIY / Maintenance / Service	45	01-06-2007 06:52 PM

08-27-2018, 08:33 AM	#3
sunsanvil Drives: 2018 LE 5DR A4 Join Date: Aug 2018 Location: Canada Posts: 23	When we got our 2007 I worried/obsessed about this. Not wanting to mod the car in any way, I did nothing. I keep immaculate records though and honestly, the mileage in winter was in no notable way worse than our 00 Echo which had no A/C at all. My understanding is that when it starts to get too cold out for the A/C to be able to cool the incoming air temp, the control circuit will get a low pressure reading from the A/C system (in combination with a crap load of other sensor data) and effectively turn if off anyway (even if you manually turn A/C on). In other words, the system is not stupid: it probably isn't trying to cool -40C air. :) This is totally anecdotal on my part but after 12 years in Atlantic Canada, that 07's A/C worked as well as the day it rolled off the line, whereas I have many many memories of olders cars (without the A/C-Defroster relationship) which all seem to have A/C issues after 5 or 6 years.