T-SB-0017-19

T-SB-0017-19
January 28, 2019
Sport Mode Cruise Control Logic Improvement
Service
Category
Engine/Hybrid System
Section
Cruise Control
Market USA
Applicability
YEAR(S)
MODEL(S)
ADDITIONAL INFORMATION
2019
Corolla Hatchback
VDS(s): K4RBE
Engine(s): M20
Transmission(s): CVT
Introduction
Some 2019 model year Corolla Hatchback vehicles equipped with a K120 Continuously Variable
Transaxle (CVT) may exhibit a phenomenon which prevents the vehicle from accelerating past
the driver set cruise speed during the following conditions.

Cruise control system is engaged

Drive mode selected: Sport

Vehicle speed is 60 mph or greater

Driving uphill - road grade 6% or greater
The Engine Control Module/ECM (SAE Term: Powertrain Control Module/PCM) logic has been
modified to reduce the possibility of this condition occurring. Follow the Repair Procedure in this
bulletin to address this condition.
Production Change Information
This bulletin applies to vehicles produced BEFORE the Production Change Effective VIN
shown below.
MODEL
PLANT
DRIVETRAIN
PRODUCTION CHANGE EFFECTIVE VIN
Corolla Hatchback
Tsutsumi
CVT
JTNK4RBE#K3023223
© 2019 Toyota Motor Sales, USA
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T-SB-0017-19
January 28, 2019
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Sport Mode Cruise Control Logic Improvement
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
EG1825
Reprogram ECM (PCM)
0.5
89661-1AA00
99
99
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
PART NUMBER
PREVIOUS
NEW
89661-1AA00
89661-1AA01
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.
© 2019 Toyota Motor Sales, USA
T-SB-0017-19
January 28, 2019
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Sport Mode Cruise Control Logic Improvement
Required Tools & Equipment
REQUIRED EQUIPMENT
SUPPLIER
PART NUMBER
Techstream 2.0*
QTY
TS2UNIT
Techstream Lite
ADE
TSLITEPDLR01
Techstream Lite (Green Cable)
1
TSLP2DLR01
*Essential SST.
NOTE
 Only ONE of the Techstream units listed above is required.
 Software version 13.30.018 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
ENGINE
Corolla Hatchback
M20A-FKS
CALIBRATION ID
PREVIOUS
NEW
8966312R1000
8966312R1100
© 2019 Toyota Motor Sales, USA
VDS
K4RBE
T-SB-0017-19
January 28, 2019
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Sport Mode Cruise Control Logic Improvement
Repair Procedure
1. Confirm the vehicle is unable to accelerate past the driver set cruise speed during ALL of the
following conditions.

Cruise control system is engaged

Drive mode selected: Sport

Vehicle speed is 60 mph or greater

Driving uphill - road grade 6% or greater
Is the vehicle unable to accelerate past the driver set cruise speed during ALL of the
conditions listed above?
 YES — Continue to step 2.

NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
2. Deactivate the cruise control system operation using ANY of the following methods.

Press the Cruise Cancel button.

Briefly press the brake pedal.

Place the vehicle into Normal drive mode.
Is the condition described in step 1 still present AFTER performing ANY of the methods
listed above?
 YES — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
 NO — Continue to step 3.
3. Using Techstream, perform a Health Check to determine if ANY Diagnostic Trouble Codes
(DTCs) are stored.
Are ANY DTCs present?
 YES — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.
 NO — Continue to step 4.
© 2019 Toyota Motor Sales, USA
T-SB-0017-19
January 28, 2019
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Sport Mode Cruise Control Logic Improvement
Repair Procedure (continued)
4. 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 5.
Figure 1. Location of Authorized Modifications Label on 2019 Corolla Hatchback
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., 89661-1AA01)
4
Date Com pleted
2
New Calibration ID (e.g., 8966312R1100)
5
This SB Num ber
3
Dealer Code
© 2019 Toyota Motor Sales, USA
T-SB-0017-19
January 28, 2019
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Sport Mode Cruise Control Logic Improvement
Repair Procedure (continued)
5. 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 at 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.
6. Prepare and install the Authorized Modifications Label.
A. Using a permanent marker, enter the following information on the label:
 ECM (PCM) 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 onto the vehicle at the location shown in
Figure 1. The Authorized Modifications Label is available through the MDC,
P/N 00451-00001-LBL.
7. Test-drive the vehicle to confirm proper operation.
© 2019 Toyota Motor Sales, USA