T-TT-0051-10

Tech Tip
September 13, 2013
T-TT-0051-10
APPLICABLE VEHICLES
i 2007-2014
[ 2008-2014
2007-2014
t 2009-2014
' 2012-2014
Camry
Highlander
Tundra
Matrix
RAV4 EV
2012-2014
2004-2014
: 2009-2014
:r 2004-2014
i 2012-2014
: 2007-2014
Prius V
Avalon
Venza
Yaris
Prius C
Camry HV
I
. 2007-2014
L2010-2014
2004-2014
l 2013-2014
I 2008-2011, 2013i 2014
2008-2014
2006-2014
2010, 2012-2014
2004-2014
2008-2014
2009-2014
I
I
FJ Cruiser
Prius
Sienna
Avalon HV
Land Cruiser
Sequoia
RAV4
Prius PHV
Tacoma
Highlander HV
Corolla
CONDITION
If a customer states there is an unpleasant odor in the vehicle from the HVAC system , there are various
factors that may be involved.
RECOMMENDATIONS
When diagnosing HVAC odors it is important to remember the following possible causes :
• During use, various odors from inside and outside the vehicle may enter into and accumulate in
the air conditioning system . This may then cause odor to be emitted from the vents.
• Odors coming from the outside air and interior can accumulate on the evaporator. As the
evaporator core changes temperature, some of these odors may be released resulting in an
unpleasant smell from the HVAC vents .
•
Tech Tip
Ver. 1.0 2/9/2010T
Interior odors from sources such as air fresheners, animals, dirt, or trash can also accumulate
within the HVAC system and contribute unpleasant odors.
10/13/2013
Rev1
© 2012, Toyota Motor Sales, USA
Page 1 of 2
@TOYOTA
Tech Tip
September 13, 2013
T-TT-0051-10
Sub1ect
Market
Causes Of HVAC Odor
USA
Appl1cat>hty
All Models
RECOMMENDATIONS
[ Odor Source
J
The insoluble odors are
blown into the vehicle's interior
r
'
The water soluble odors are dissolved
in the moisture on the evaporator and drain
out the evaporator drain
•
Tech Tip
Setting the air conditioning system to the outside air (FRESH) mode prior to turning the vehicle
OFF can help to minimize these odors from accumulating .
10/13/2013
Rev1
© 2012 , Toyota Motor Sales, USA
Page 2 of 2