T-SB-0125-18

September 19, 2018

Engine Idle Surge With Steering Input
Service
Category

Engine/Hybrid System

Section

Engine Control

Market USA

Applicability
YEAR(S)

MODEL(S)

ADDITIONAL INFORMATION

2016 - 2017

Tacoma

VDS(s): AZ5CN, BZ5DN, CZ5AN, DZ5BN,
EZ5CN, FZ5DN, GZ5AN, HZ5BN, RZ5CN,
SZ5AN

Introduction

Some 2016 – 2017 model year Tacoma vehicles equipped with a 2GR-FKS engine may exhibit
an engine idle surge with steering input. The surge is most noticeable under the
following conditions:


The vehicle is operated at an idle creep speed.



The steering wheel is turned (i.e., backing out of a garage or executing parking lot maneuvers).

 The engine coolant temperature is low.
Follow the Repair Procedure in this bulletin to address this condition.
Warranty Information
OP CODE

EG1812

DESCRIPTION

Reprogram ECM (PCM) Engine

TIME

OFP

T1

T2

0.4

89661-04K50
89661-04K51
89661-04K52
89661-04K53
89661-04K60
89661-04K61
89661-04K62

04

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.

© 2018 Toyota Motor Sales, USA

Page 1 of 5

T-SB-0125-18

September 19, 2018

Page 2 of 5

Engine Idle Surge With Steering Input
Parts Information
PART NUMBER
PREVIOUS

NEW

89661-04K50
89661-04K51
89661-04K52
89661-04K53

89661-04K54

89661-04K60
89661-04K61
89661-04K62

89661-04K63

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.

Required Tools & Equipment
REQUIRED EQUIPMENT

SUPPLIER

Techstream 2.0*
Techstream Lite

PART NUMBER

QTY

TS2UNIT
ADE

Techstream Lite (Green Cable)

TSLITEPDLR01
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.

© 2018 Toyota Motor Sales, USA

1

T-SB-0125-18

September 19, 2018

Page 3 of 5

Engine Idle Surge With Steering Input
Required Tools & Equipment (continued)
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
ENGINE

TRANSMISSION

ECU
TYPE

CALIBRATION ID
PREVIOUS

NEW

Main

8966304B0300
8966304B0200
8966304B0100
8966304B0000

8966304B0400

Sub

896650401300
896650401200
896650401100
896650401000

896650401400

Main

8966304B1200

8966304B1300

6AT
2GR-FKS

6MT

Repair Procedure

1. Does the vehicle exhibit an engine idle surge with steering input under the conditions
described in the Introduction?
 YES — Continue to step 2.


NO — This bulletin does NOT apply. Continue diagnosis using the applicable
Repair Manual.

© 2018 Toyota Motor Sales, USA

T-SB-0125-18

September 19, 2018

Page 4 of 5

Engine Idle Surge With Steering Input
Repair Procedure (continued)

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 – 2017 Tacoma

1

Replacement ECM (PCM) Part Number
(i.e., 89661-04K54)

4

Date Com pleted

2

New Calibration ID(s) (i.e., 8966304B0400)

5

This SB Num ber

3

Dealer Code

© 2018 Toyota Motor Sales, USA

T-SB-0125-18

September 19, 2018

Page 5 of 5

Engine Idle Surge With Steering Input
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 at TIS – Diagnostics – Tools & Equipment – Battery Diagnostics.

Follow the procedures outlined in the Service Bulletin No. 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]
Dealer Code
Repair Date
Change Authority [This bulletin number]

B. Install the Authorized Modifications Label to 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 verify the condition is resolved.
6. Warm up the engine to normal operating temperature and test-drive the vehicle to confirm
proper operation.

© 2018 Toyota Motor Sales, USA