NHTSA ID Number: 10187260
Manufacturer Communication Number: T-SB-0093-20 Rev
TSB/Document Date: 2021-02-16
Summary
TSB: Some 2016 ? 2021 model year Tacoma vehicles may exhibit a condition where the air conditioning system shuts down and stops blowing cool air during periods of extended engine idle with ambient temperatures greater than 100°F. Follow the Repair Procedure in the bulletin to address this condition.
T-SB-0093-20
Rev1
September 22, 2020
Lack of A/C Performance at Idle in High Ambient
Temperature
Service
Category Vehicle Interior
Section
Market USA
Heating/Air Conditioning
Applicability
YEAR(S)
MODEL(S)
ADDITIONAL INFORMATION
2016 - 2021
Tacoma
VDS(s): AZ5CN, BZ5DN, CZ5AN, DZ5BN,
EZ5CN, FZ5DN, GZ5AN, HZ5BN, RZ5CN,
SZ5AN
Engine(s): 2GR
Transmission(s): 6AT
REVISION NOTICE
January 12, 2021 Rev1:
• Applicability has been updated to include 2021 model year Tacoma vehicles.
Any previous printed versions of this bulletin should be discarded.
SUPERSESSION NOTICE
The information contained in this bulletin supersedes Service Bulletin No. T-SB-0063-18.
• The Applicability and Warranty Information sections have been updated.
Service Bulletin No T-SB-0063-18 is obsolete and any printed versions should be discarded.
Draft - Confidential
© 2021 Toyota
Motor Sales, USA
Page 1 of 62
T-SB-0093-20
Rev1
September 22, 2020
Page 2 of 62
Lack of A/C Performance at Idle in High Ambient Temperature
Introduction
Some 2016 – 2021 model year Tacoma vehicles may exhibit a condition where the air
conditioning system shuts down and stops blowing cool air during periods of extended engine idle
with ambient temperatures greater than 100°F. Follow the Repair Procedure in the bulletin to
address this condition.
Warranty Information
OP CODE
AC1919
DESCRIPTION
Additional Cooling Kit*
TIME
OFP
T1
T2
3.3
88450-04012
88460-04200
88460-04201
88450-04011
7A
99
*Choose the correct OFP for the vehicle being repaired by searching the parts in EPC using the EPC VIN filter.
Warranty claims MUST be submitted with the correct OFP with 10 digits.
APPLICABLE WARRANTY
• This repair is covered under the Toyota Basic Warranty. This warranty is in effect for 36
months or 36,000 miles, whichever occurs first, from the vehicle’s in-service date.
• Warranty application is limited to occurrence of the specified condition described in
this bulletin.
Draft - Confidential
© 2021 Toyota Motor Sales, USA
T-SB-0093-20
Rev1
September 22, 2020
Page 3 of 62
Lack of A/C Performance at Idle in High Ambient Temperature
Parts Information
PART NUMBER
PART NAME
QTY
88590-35050
Blower Assy, W/Shroud
1
90080-87026
Relay
1
90119-A0078
1
36869-04010
1
36869-04030
Cover, Packing
36869-04040
1
1
36867-04040
Seal, Packing
1
82112-04050
1
82662-0E080
Cover, Relay Block, Upr
1
82683-35220
Label, Fuse Block Notice
1
08231-00045
Silicone Tape
1
NAPA Auto Parts P/N: NW 737305
or Equivalent
¼ in. Diameter Corrugated Tubing
1
82715-35F50
Bracket, Wire Harness Clamp
1
90080-11180
2
82999-12020
Terminal, Joint Repair
3
90464-00345
Clamp
32
NOTE
• Repair components are NOT available as a kit.
• ALL parts MUST be ordered separately.
• The quantity amounts listed above are f or repairing one vehicle.
Draft - Confidential
© 2021 Toyota Motor Sales, USA
T-SB-0093-20
Rev1
September 22, 2020
Page 4 of 62
Lack of A/C Performance at Idle in High Ambient Temperature
Required Tools & Equipment
REQUIRED EQUIPMENT
SUPPLIER
PART NUMBER
Techstream ADVi*
TSADVUNIT
Techstream 2.0
Techstream Lite
QTY
TS2UNIT
ADE
1
TSLITEPDLR01
Techstream Lite (Green Cable)
TSLP2DLR01
*Essential SST.
NOTE
• ONLY ONE of the Techstream units listed above is required.
• Sof tware version 15.30.027 or later is required.
• Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787.
SPECIAL SERVICE TOOLS (SST)
PART NUMBER
QTY
Plastic Pry Tool Kit*
00002-06020-01
1
REQUIRED EQUIPMENT
PART NUMBER
QTY
K Tool International
8-in-1 Quick and Easy Wire Stripper
or Equivalent (Must Include INS Position)
KTI56207
Order Through www.walmart.com or
Several Other Websites
1
Eclipse Tools
CP-301G Pro'sKit Precision Wire Stripper,
30-20 AWG or Equivalent
CP-301G
Order Through www.amazon.com
–
*Essential SST.
NOTE
Additional SSTs may be ordered by calling 1-800-933-8335.
REQUIRED TOOLS & MATERIAL
PART NUMBER
QTY
Silicone Sealer (Form-in-Place Gasket – Oil Pan)
00295-00103
1
Wire Coat Hanger
–
1
–
As Needed
Draft - Confidential
© 2021 Toyota Motor Sales, USA
T-SB-0093-20
Rev1
September 22, 2020
Page 5 of 62
Lack of A/C Performance at Idle in High Ambient Temperature
Repair Procedure
NOTE
This procedure includes the installation of an additional condenser cooling fan. The installation of these
parts also requires the installation of an engine room sub-wire harness, passenger compartment
harnesses, and an additional relay block.
1. Does the vehicle A/C system shut OFF while stopped, idling in Drive for an extended period of
time during high ambient temperature (100°F+)?
CAUTION
• Ensure the parking brake is firmly applied and hold your foot on the brake pedal.
• Conduct activity in an open area away from obstacles.
NOTE
This condition may NOT be possible to duplicate if ambient temperature is below 100°F.
•
•
YES — Go to step 3.
NO — Continue to step 2.
2. If unable to duplicate the condition, confirm that the customer complaint is similar to the
condition described in step 1.
Is the condition similar to the condition described in step 1?
•
YES — Continue to step 3.
•
NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
3. Remove the radiator grille.
A. Disconnect the battery.
Figure 1.
2
1
B. Apply protective tape around the
radiator grille.
C. Remove the two screws holding the
grille in place.
D. Using a clip remover, remove the
two clips.
1
E. Disengage the 10 guides and remove
the radiator grille.
1
2
Screw
Guide
Draft - Confidential
© 2021 Toyota Motor Sales, USA
T-SB-0093-20
Rev1
September 22, 2020
Page 6 of 62
Lack of A/C Performance at Idle in High Ambient Temperature
Repair Procedure (continued)
4. Remove the left-hand radiator side deflector
by removing the clip and disengaging the
three claws.
Figure 2.
1
1
Clip
Claw
5. Remove the right-hand radiator side
deflector by removing the clip and
disengaging the three claws.
Figure 3.
1
1
Clip – Two Outer Attachments
Claw
Draft - Confidential
© 2021 Toyota Motor Sales, USA
T-SB-0093-20
Rev1
September 22, 2020
Page 7 of 62
Lack of A/C Performance at Idle in High Ambient Temperature
Repair Procedure (continued)
6. Install the NEW condenser fan.
A. Slide the two bottom mounts of the
condenser fan over the sheet metal lip
of the radiator core support.
Figure 4.
1
B. Install the bolt into the top mount.
2
7. Locate the bolt holes on the driver side
inner fender. Attach the NEW bracket to
the inner fender with the bolts provided in
the kit.
1
2
Bottom Mount
Figure 5.
Torque: 9.8 – 18.1 N*m
(100 – 185 kgf*cm, 7.5 – 13 ft*lbf)
Figure 6.
Draft - Confidential
© 2021 Toyota Motor Sales, USA
2
T-SB-0093-20
Rev1
September 22, 2020
Lack of A/C Performance at Idle in High Ambient Temperature
Repair Procedure (continued)
8. Install the NEW notice label on the inside of
the NEW relay block relay cover.
9.
Install the NEW relay into the “CDS FAN”
location as indicated on the notice label.
10. Attach the relay block to the bracket
installed in step 7.
Draft - Confidential
Figure 7.
Figure 8.
Figure 9.
© 2021 Toyota Motor Sales, USA
Page 8 of 62
T-SB-0093-20
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TSB/Document ID: T-SB-0093-20 Rev
Replacement Service Bulletin Number:
MFR Communication Date: 2021-01-12
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PRESSURE/TEMPERATURE SENSOR
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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