T-SB-0058-18_Rev

T-SB-0058-18
Rev1
July 9, 2018
Vehicle Surge Between 40 and 50 mph
Service
Category
Drivetrain
Section
Automatic Transmission/Transaxle
Market USA
Applicability
YEAR(S)
MODEL(S)
ADDITIONAL INFORMATION
2016 - 2018
Tacoma
WMI(s): 3TM, 5YF
VDS(s): AZ5CN, BZ5DN, CZ5AN, DZ5BN,
EZ5CN, GZ5AN, HZ5BN, RZ5CN, SZ5AN
Engine(s): 2GR
Transmission(s): 6AT
REVISION NOTICE
July 31, 2018 Rev1:
 Applicability has been updated to include 2018 model year Tacoma vehicles.
 The Parts Information and Calibration Information sections have been updated.
Any previous printed versions of this bulletin should be discarded.
Introduction
Some 2016 – 2018 model year Tacoma vehicles equipped with a 2GR engine and an
AC60 transmission may exhibit a surge feeling under the following conditions.



Vehicle is traveling between 40 and 50 mph
Transmission is in fourth or fifth gear
During torque converter lock-up
The Engine Control Module/ECM (SAE Term: Powertrain Control Module/PCM) logic has
been revised to address this condition. Follow the Repair Procedure in this bulletin to address
this condition.
© 2018 Toyota Motor Sales, USA
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Vehicle Surge Between 40 and 50 mph
Warranty Information
OP CODE
EG1810
DESCRIPTION
Reprogram ECM (PCM)
TIME
OFP
T1
T2
0.4
89661-04K53
89661-04K52
89661-04K51
89661-04K50
89661-04K62
89661-04K61
89661-04K60
89661-04K71
89661-04K70
03
74
APPLICABLE WARRANTY
 This repair is covered under the Toyota Federal Emission Warranty. This warranty is in effect for
96 months or 80,000 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.
Parts Information
ENGINE
2GR-FKS
–
PART NUMBER
PREVIOUS
NEW
89661-04K53
89661-04K52
89661-04K51
89661-04K50
89661-04K54
89661-04K62
89661-04K61
89661-04K60
89661-04K63
89661-04K20
89661-04K21
89661-04K30
89661-04K31
00451-00001-LB L
PART NAME
QTY
Computer, Engine Control (ECM/PCM)
–
Authorized Modifications Labels
1
NOTE
 The ECM (PCM) should NOT be replaced as part of the Repair Procedure.
 Authorized Modifications Labels may be ordered in packages of 25 from the Materials
Distribution Center (MDC) through Dealer Daily – Parts – Dealer Support Materials Orders.
© 2018 Toyota Motor Sales, USA
T-SB-0058-18
Rev1
July 9, 2018
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Vehicle Surge Between 40 and 50 mph
Required Tools & Equipment
REQUIRED EQUIPMENT
SUPPLIER
Techstream 2.0*
PART NUMBER
QTY
TS2UNIT
Techstream Lite
ADE
Techstream Lite (Green Cable)
TSLITEPDLR01
1
TSLP2DLR01
* Essential SST.
NOTE
 Only ONE of the Techstream units listed above is required.
 Software version 13.10.019 or later is required.
 Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE)
at 1-800-368-6787.
 Use Techstream or an approved J2534 interface to perform flash reprogramming updates.
Visit techinfo.toyota.com for more information regarding J2534 reprogramming.
SPECIAL SERVICE TOOLS (SST)
PART NUMBER
QTY
GR8 Battery Diagnostic Station*
00002-MCGR8
1
* Essential SST.
NOTE
Additional SSTs may be ordered by calling 1-800-933-8335.
Calibration Information
MODEL
YEAR
ENGINE
2016 – 2017
Tacoma
2GR-FKS
2018
CALIBRATION ID
PREVIOUS
NEW
8966304B0300
8966304B0200
8966304B0100
8966304B0000
8966304B0400
8966304B1200
8966304B1300
8966304A6000
8966304A6100
8966304A7000
8966304A7100
© 2018 Toyota Motor Sales, USA
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Rev1
July 9, 2018
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Vehicle Surge Between 40 and 50 mph
Repair Procedure
1. Confirm the condition exists.
Does the vehicle exhibit a surge during torque converter lock up in fourth or fifth gear?
 YES — Continue to step 2.

NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
2. Check for the Authorized Modifications Label affixed to the vehicle in the location shown
below. Confirm if the ECM (PCM) calibration has been updated.
Is the calibration ID listed the latest ECM (PCM) calibration?
 YES — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
 NO — Continue to step 3.
Figure 1. Location of Authorized Modifications Label for 2016 – 2018 Tacoma
TOYOTA MOTOR CORPORATION
A UTHORIZE D
M OD IF IC A TIONS
THE FOLLOWING MODIFICATIONS HAVE BEEN MADE:
1
2
THESE MODIFICATIONS HAVE BEEN APPROVED
AS APPROPRIATE BY EPA AND CARB
3
DEALER CODE:
CHANGE AUTHORITY:
4
DATE:
5
1
Replacement ECM (PCM) Part Number
(e.g., 89661-04K54)
4
Date Com pleted
2
New Calibration ID (e.g., 8966304B0400)
5
This SB Num ber
3
Dealer Code
© 2018 Toyota Motor Sales, USA
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Vehicle Surge Between 40 and 50 mph
Repair Procedure (continued)
3. Flash reprogram the ECM (PCM).
NOTE
 The GR8 Battery Diagnostic Station MUST be used in Power Supply Mode to maintain
battery voltage at 13.5V while flash reprogramming the vehicle.
 For details on how to use the GR8 Battery Diagnostic Station, refer to the GR8 Instruction Manual
located on TIS – Diagnostics – Tools & Equipment – Battery Diagnostics.
Follow the procedures outlined in Service Bulletin T-SB-0134-16, Techstream ECU Flash
Reprogramming Procedure, and flash the ECM (PCM) with the NEW calibration file update.
4. Prepare and install the Authorized Modifications Label.
A. Using a permanent marker, enter the following information on the label:
 ECM part number [Refer to the Parts Information section for the NEW
PART NUMBER]




Calibration ID(s) [Refer to the Calibration Information section for the
NEW CALIBRATION ID]
Dealer Code
Repair Date
Change Authority [This bulletin number]
B. Install the Authorized Modifications Label on the vehicle at the location shown in
Figure 1. The Authorized Modifications Label is available through the MDC,
P/N 00451-00001-LBL.
5. Start the engine and warm it up to normal operating temperature.
6. Test-drive the vehicle to confirm proper vehicle operation.
© 2018 Toyota Motor Sales, USA