T-SB-0044-14 Service Bulletin/Repair Instructions

®TOYOTA

T-SB-0044-14
Technical Service Bulletin
July 7, 2014
Spark Knock Noise

Service

Category
Engine/Hybrid System
Section
Engine Control
Market
Toyota Supports ~

ASE Certification . .
USA
Applicability

YEAR(S)
MODEL(S)
2012 - 2014
Tacoma
ADDITIONAL INFORMATION
Introduction

Some 2012 - 2014 model year Tacoma vehicles equipped with 1GR-FE engines may exhibit spark

knock (detonation) during light acceleration and/or uphill in hot weather (80° F or higher) . 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

improve this condition .

Warranty Information

OP CODE
EG1404
DESCRIPTION
Reprogram ECM (PCM)
TIME
OFP
T1
T2
0.4
89660-04E40

89660-04JOO

89660-04J10

89661-04G60

89661-04G70

89661-04G80
06
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.
© 2014 Toyota Motor Sales, USA
Page 1 of 5
@TOYOTA
T-SB-0044-14
July 7, 2014
Page 2 of 5
Spark Knock Noise
Calibration Information

CALIBRATION ID

MODEL
MY
DRIVETRAIN
ENGINE
TRANSMISSION
4WD / 2WD

PreRunner

2012
SAT
2WD
PREVIOUS
NEW
304SSOOO
304SS100
30467000
30467100
30468000
30468100
30480000
30480100
30481000
30481100
30482000
30482100
6MT

Tacoma
4WD
1GR-FE
4WD / 2WD

PreRunner

2013-2014
SAT
2WD
6MT
4WD
Parts Information

MY
DRIVETRAIN
ENGINE
PART NUMBER
TRANSMISSION
PREVIOUS
NEW
SAT
89661-04EOO
89661 -04E01
89661-04F40
89661-04F41
89661-04FSO
89661-04FS1
PART NAME
QTY
-
4WO
,____
2WD

PreRunner
2012
,____
2WD

4WD

4WD

2013-2014
2WD

PreRunner

2WD

4WD
6MT

18R-FE
89661-04860

SAT
6MT
89661-04860
-
,____
Computer,

Engine Control

(ECM/PCM)
89660-04E41
89661-04870
89660-04J01
89661-04880
89660-04J 11

QTY
004S1-00001-LBL
Authorized Modification Labels
1
• Authorized Modification Labels may be ordered in packages of 25 from the Materials

Distribution Center (MDC) through Dealer Daily- Dealer Support Materials Orders.
© 2014 Toyota Motor Sales, USA
-
-
PART NAME
• The ECM (PCM) should NOT be replaced as part of the repair procedure.
-
--
PART NUMBER
NOTE
-
@TOYOTA
Page 3 of 5
July 7, 2014
T-SB-0044-14
Spark Knock Noise
Required Tools & Equipment

REQUIRED EQUIPMENT
SUPPLIER
Techstream 2.0*

TIS Techstream
PART NUMBER
QTY
TS2UNIT

ADE
1
TSPKG1

TSLITEDLR0 1
Techstream Lite

SPECIAL SERVICE TOOLS (SST)
PART NUMBER
QTY
GR8 Battery Diagnostic Station*
00002-MCGRS
1
NOTE

• Only ONE of the Techstream units listed above is required.

• Software version 9.10.037 or later is required.

• Additional Techstream units may be ordered by calling Approved Dealer

Equipment (ADE) at 1-800-368-6787.

• Additional SSTs may be ordered by calling 1-800-933-8335.

• The Diagnostic Tester is NOT recommended for flash reprogramming.

Please use Techstream or an approved J2534 interface to perform flash

reprogramming updates. Visit techinfo.toyota.com for more information

regarding J2534 reprogramming.
* Essential SST.
© 2014 Toyota Motor Sales , USA
@TOYOTA
T-SB-0044-14
July 7, 2014
Page 4 of 5
Spark Knock Noise
Repair Procedure
1. Confirm the condition .

Does the condition duplicate after driving under light acceleration or uph ill with the engine

warmed up to operating temperature?

• 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 in

Figure 1. Confirm if the ECM (PCM) calibration has been updated. If the calibration ID listed

is NOT the latest ECM (PCM) calibration - go to step 3. If the calibration ID is the latest, go

to step 5.

Figure 1. Location of Authorized Modifications Label on 201 2 - 2014 Tacoma
THESE MODIFICATIONS HAVE BEEN APPROVED

AS APPROPRIATE BY EPA AND GARB

3 }---l~ DEALER CODE :

DATE:

CHANGE AUTHORITY:
1
Replacement ECM (PCM) Part Number

(i.e., 89660-04E41)
2
New Calibration ID(s) (i.e., 30480100)
3
Dealer Code
4
Date Completed
5
This SB Number
© 2014 Toyota Motor Sales, USA
@TOYOTA
July 7, 2014
T-SB-0044-14
Page 5 of 5
Spark Knock Noise
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 13.5 volts while flash reprogramming the vehicle .

• For details on how to use the GR8 Battery Diagnostic Station , refer to the

GR8 Instruction Manual located on the Technical Information System (TIS),

Diagnostics - Tools & Equipment - Battery Diagnostics.
Follow the procedures outlined in Service Bulletin No. T-SB-001 2- 13, "Techstream ECU Flash

Reprogramming Procedure," and flash the ECM (PCM) with the NEW calibration file update.

4. 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. Affix 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. Test drive to confirm the repair.
© 2014 Toyota Motor Sales, USA

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