Nonlinear Acceleration (2WD Only) (L-SB-0037-16)
Publication date: 2016-07-11Reference number: L-SB-0037-16
NONLINEAR ACCELERATION (2WD ONLY)
TECHNICAL SERVICE BULLETIN
Reference Number(s): L-SB-0037-16, Date of Issue:
July 11, 2016
| LEXUS: | 2013 - 2014 LS460 |
| SERVICE CATEGORY: | Engine/Hybrid System |
| SECTION: | Engine Control |
| COPYRIGHT: | © 2018 Lexus, a division of Toyota Motor Sales, USA License Agreement TMS1002 |
APPLICABILITY
APPLICABILITY
| YEAR(S) | MODEL(S) | ADDITIONAL INFORMATION |
|---|---|---|
| 2013 - 2014 | LS460 |
INTRODUCTION
Some 2013 - 2014 model year LS 460 (2WD) vehicles may exhibit a non-linear acceleration or hesitation feeling due to inappropriate spark knock or detonation detection and may set Diagnostic Trouble Code (DTC) P2119 (Throttle Actuator Control Throttle Body Range Performance). To enhance the smoothness of acceleration, the Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) calibration has been revised. Use the following Repair Procedure to address this condition.
WARRANTY INFORMATION
WARRANTY INFORMATION
| OP CODE | DESCRIPTION | TIME | OFP | T1 | T2 |
|---|---|---|---|---|---|
| EL1610 | Recalibrate ECM (PCM) | 0.4 | 89661-50L00 89661-50L70 89661-50M00 89661-50M50 89661-50P10 89661-50P11 89661-50P20 89661-50P30 89661-50P40 |
04 | 99 |
APPLICABLE WARRANTY
- This repair is covered under the Lexus 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
PARTS INFORMATION
| PART NUMBER | PART NAME | QTY | |
|---|---|---|---|
| PREVIOUS | NEW | ||
| 89661-50L00 89661-50P10 89661-50L01 |
89661-50P40 89661-50P11 |
Computer, Engine Control (ECM) | - |
| - | 00451-00001-LBL | Authorized Modifications Label | 1 |
NOTE:
- The ECM (PCM) should NOT be replaced as part of the Repair Procedure.
- Authorized Modification Labels may be ordered in packages of 25 from the Materials Distribution Center (MDC) through Dealer Daily - Dealer Support Materials Orders .
CALIBRATION INFORMATION
CALIBRATION INFORMATION
| MODEL | MODEL YEAR | OPTION | CALIBRATION ID | |
|---|---|---|---|---|
| PREVIOUS | NEW | |||
| L460 | 2013 | Non F Spot | 35065000 | 35065100 |
| F Spot | 35065001 | 35065101 | ||
| 2014 | Non F Spot | 350G5000 | 350G5100 | |
| F Spot | 350G5001 | 350G5101 | ||
REQUIRED TOOLS & EQUIPMENT
REQUIRED TOOLS & EQUIPMENT
| REQUIRED EQUIPMENT | SUPPLIER | PART NUMBER | QTY | ||
|---|---|---|---|---|---|
| Techstream 2.0(1) | ADE | TS2UNIT | 1 | ||
| Techstream Lite | TSLITEPDLR01 | ||||
| Techstream Lite (Green Cable) | TSLP2DLR01 | ||||
|
|||||
NOTE:
- Only ONE of the Techstream units listed above is required.
- Software version 11.10.034 or later is required.
- Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE) at 1-800-368-6787.
- 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.
REQUIRED TOOLS & EQUIPMENT
| SPECIAL SERVICE TOOLS (SST) | PART NUMBER | QTY | ||
|---|---|---|---|---|
| GR8 Battery Diagnostic Station (1) | 000002-MCGR8 | 1 | ||
|
||||
NOTE:
Additional SSTs may be ordered by calling 1-800-933-8335.
REPAIR PROCEDURE
- Confirm the condition.
Does the non-linear acceleration or hesition condition duplicate when acceleration?
- YES - Go to step 2.
- NO - This bulletin does NOT apply. Continue diagnosis using the applicable Repair Manual.
- 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.
- 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. L-SB-0021-14 "Techstream ECU Flash Reprogramming Procedure," and flash the ECM (PCM) with the NEW calibration file update.
- Install the Authorized Modifications Label.
- 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]
- 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.
- Using a permanent marker, enter the following information on the label:
- Test drive the vehicle to confirm that the non-linear acceleration or hesitation is no longer present.