S-TT-0116-19

Tech Tip
S-TT-0116-19
January 03, 2019
Subject
Market
Air Conditioning System – Improved Component
Inspection
USA
Service Category
Section
Vehicle Interior
Heating/Air Conditioning
Applicability
Scion
APPLICABLE VEHICLES
2015-2016
2015-2016
2016
FR-S
tC
iM
2015
2015
xB
iQ
CONDITION
In certain cases of leaking air conditioning systems, the root cause of the leak is inadvertently
overlooked, causing a repeat repair. To improve customer satisfaction and repair A/C system leaks in
one dealer visit, Toyota has developed a set of guidelines for evaluating A/C system components.
Expires on
Ver. 2.9 01/01/2018 L
01/03/2020
© 2018, Toyota Motor Sales, USA
Page 1 of 7
Tech Tip S-TT-0116-19
January 03, 2019
Subject
Market
Air Conditioning System – Improved Component
Inspection
USA
Applicability
Scion
RECOMMENDATIONS
2) Inspect for O-ring Abnormality
• Remove the O-ring from pipe/component for
inspection.
• Using a plastic pick tool to remove O-ring
and prevent damage to mating part.
Use a non-metallic
tool for
O-ring removal.
Using a metallic
tool could result in
damage to other
components
OK Part* - Line at middle of O-ring is straight with
no deformation. No tears, or crushed areas.
*O-rings should be replaced anytime they are
removed from a pipe/component to prevent leaks
and foreign material.
Twisted O-Ring – No Good Part
Line at middle of O-ring is not straight.
Cut/Dent/Crush – No Good Part
O-ring damaged by another component.
Replace O-ring, proceed with A/C Pipe
Inspection.
Foreign Material– No Good Part
O-ring contaminated by material outside A/C
system.
Replace O-ring, proceed with A/C Pipe
inspection.
Step 2:
Inspect
O-Ring
Complete
Expires on
Ver. 2.9 01/01/2018 L
01/03/2020
Step 3:
Inspect
A/C Pipe
(Cont. to pg. 3)
© 2018, Toyota Motor Sales, USA
Page 2 of 7
Tech Tip S-TT-0116-19
January 03, 2019
Subject
Market
Air Conditioning System – Improved Component
Inspection
USA
Applicability
Scion
RECOMMENDATIONS
3) - Inspect for A/C Pipe Abnormality
OK Part - Light scratching parallel with O-ring
groove. This is caused by normal part
processing. Pipe is ok to reuse.
Damage – No Good Part
Pipe is damaged due to deep
scratching or gouge of base
metal. Pipe replacement is
recommended to prevent repeat
repair.
Foreign Material – OK Part
Pipe has foreign material stuck
to it. Material can be cleaned off
using a non-metallic tool and the
pipe is ok to be reused.
Corrosion – No Good Part
Pipe is damaged due to
corrosion of base material. Pipe
replacement is recommended to
prevent repeat repair.
Step 3:
Inspect
A/C Pipe
Complete
Expires on
Ver. 2.9 01/01/2018 L
01/03/2020
Step 4:
Inspect Mating
Components
(Cont. to pg. 4,5,6)
•
•
•
4a - Compressor Inspection – Pg.4
4b - Expansion Valve – Pg. 5
4c - Condenser Inspection – Pg.6
© 2018, Toyota Motor Sales, USA
Page 3 of 7
Tech Tip S-TT-0116-19
January 03, 2019
Subject
Market
Air Conditioning System – Improved Component
Inspection
USA
Applicability
Scion
RECOMMENDATIONS
4a) - Inspect for A/C Compressor Abnormality
OK Part - Light scratching parallel with O-ring groove.
This is caused by normal part processing. Compressor is
ok to reuse.
Damage – No Good Part
Compressor seal bore is damaged
due to deep scratching
perpendicular to O-ring groove.
Compressor replacement is
recommended to prevent repeat
repair.
Foreign Material – OK Part
Compressor has foreign material
stuck to seal bore.
Material can be carefully cleaned
off using a non-metallic tool and
the compressor is ok to be reused.
Expires on
Ver. 2.9 01/01/2018 L
01/03/2020
© 2018, Toyota Motor Sales, USA
Page 4 of 7
Tech Tip S-TT-0116-19
January 03, 2019
Subject
Market
Air Conditioning System – Improved Component
Inspection
USA
Applicability
Scion
RECOMMENDATIONS
4b) - Inspect for Expansion Valve Abnormality
OK Part - Light scratching parallel with O-ring
groove. This is caused by normal part processing.
Expansion valve is ok to reuse.
Damage – No Good Part
Expansion valve seal bore is
damaged due to deep scratching
perpendicular to O-ring groove.
Expansion valve replacement is
recommended to prevent repeat
repair.
Foreign Material – OK Part
Expansion Valve has foreign
material stuck to seal bore.
Material can be carefully cleaned
off using a non-metallic tool and
the expansion valve is ok to be
reused.
Expires on
Ver. 2.9 01/01/2018 L
01/03/2020
© 2018, Toyota Motor Sales, USA
Page 5 of 7
Tech Tip S-TT-0116-19
January 03, 2019
Subject
Market
Air Conditioning System – Improved Component
Inspection
USA
Applicability
Scion
RECOMMENDATIONS
4c) - Inspect for Condenser Abnormality
OK Part - Light scratching parallel with O-ring groove. This is
caused by normal part processing. Condenser is ok to reuse.
Damage – No Good Part
Condenser seal bore is damaged
due to deep scratching perpendicular
to O-ring groove.
Condenser replacement is
recommended to prevent repeat
repair.
Foreign Material – OK Part
Condenser has foreign material
stuck to seal bore.
Material can be carefully cleaned
off using a non-metallic tool and the
condenser is ok to be reused.
Corrosion – No Good Part
Seal bore is damaged due to
corrosion of base material.
Condenser replacement is
recommended to prevent repeat
repair.
Expires on
Ver. 2.9 01/01/2018 L
01/03/2020
© 2018, Toyota Motor Sales, USA
Page 6 of 7
Tech Tip S-TT-0116-19
January 03, 2019
Subject
Market
Air Conditioning System – Improved Component
Inspection
USA
Applicability
Scion
LINK REFERENCES
This Tech Tip does not contain any link references
Expires on
Ver. 2.9 01/01/2018 L
01/03/2020
© 2018, Toyota Motor Sales, USA
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