IMPORTANT UPDATE

TECHNICAL INSTRUCTIONS
FOR

SPECIAL SERVICE CAMPAIGN KLA

ENGINE ECU SOFTWARE UPDATE

CERTAIN:
2018 GS 350
2018 RC300 & RC 350
2018 IS 300 and IS 350
2018 RX 350 and RX 350L

Update 4/5/2019: Note added on p. 5.

The repair quality of covered vehicles is extremely important to Lexus. All dealership technicians
performing this recall are required to successfully complete the most current version of the ELearning course “Safety Recall and Service Campaign Essentials”. To ensure that all vehicles
have the repair performed correctly; technicians performing this recall repair are required to
currently hold at least one of the following certification levels:

• Certified
• Senior
• Master
It is the dealership’s responsibility to select technicians with the above certification level or
greater to perform this recall repair. Carefully review your resources, the technician skill
level, and ability before assigning technicians to this repair. It is important to consider
technician days off and vacation schedules to ensure there are properly trained technicians
available to perform this repair at all times.

I.

OPERATION FLOW CHART
Check the TIS Vehicle Inquiry System
to verify vehicle eligibility.

Not Covered

No further action required.

Covered
Perform Health Check and identify if
the Engine (all) and Transmission (RX
only) CID s needs to be updated.

NO

YES

Update the Engine (all) and
Transmission (RX only) CID s

Perform Verification Heath Check

Campaign complete.
Return the vehicle to the customer.

II. IDENTIFICATION OF AFFECTED VEHICLES
•
•

Check the TIS Vehicle Inquiry System to confirm the VIN is involved in this Campaign, and
that it has not already been completed prior to dealer shipment or by another dealer.
TMS warranty will not reimburse dealers for repairs completed on vehicles that are not
affected or were completed by another dealer.

III. PREPARATION
A. TOOLS, SUPPLIES & EQUIPMENT
•
•
•
•

Standard Hand Tools
Techstream 2.0 / TIS Techstream / Techstream Lite
GR8 Battery Diagnostic Station
L-SB-0001-18

B. PARTS
The only parts required for this campaign is the label below
Part Number
Part Description
Quantity
00451-00001-LBL
Authorized Modification Label*
1
*Labels can be ordered in packs of 25 from the MDC through Dealer Daily website.

IV. BACKGROUND
The engine ECUs in the subject vehicles are equipped with software to monitor the rear oxygen
sensors. Under a specific condition, this software may not detect a malfunctioning sensor due to an
error in the software. As a result, affected vehicles do not meet certain onboard diagnostic (OBD)
regulations.

2

V. DETERMINE STATUS OF CURRENT CALIBRATION
1. CHECK FOR DTC’S
a. Using a Techstream, perform a Health Check to check for
any Diagnostic Trouble Codes.
Note: This Campaign covers only the Calibration ID update to
the Engine and Transmission systems, as detailed in these
instructions. It does not cover the diagnosis or replacement of
any other systems on the vehicle.

2. CHECK CURRENT CALIBRATION
a. Locate the Update column for the Engine and Transmission System’s in the Stored Data
tab for this vehicle.
b. Determine the status of an available update; indicated by a Yes or No.

YES

Is there an update available to either
the Engine and/or Transmission
System?

Proceed to Section VI. Vehicle
Preperation on p. 4

No

Campaign complete. Return
the vehicle to the customer.

Note: Both the Engine and Transmission System’s will be updated only the RX 350/350L
models. All other models will only require an update only to the Engine System.

3

VI. VEHICLE PREPERATION
1. VEHICLE PREPARATION
a. Confirm the following conditions:
• Vehicle in the IG position (engine off).
• Transaxle in Park.
• Parking brake engaged.
• Turn off all electrical accessories (i.e. climate control, audio system, etc.)
• Headlight switch in the DRL OFF position.
• Windshield wiper switch in the OFF position.
2. CONNECT THE 12v BATTERY TO A POWER SUPPLY (GR8)
a. Connect the GR8 or other type of a power supply (not a battery charger) to the 12v battery.
b. Select the Power Supply Mode from the Charge Menu of the GR8.
A power supply MUST be used during reprogramming. ECU
damage will occur if the battery voltage is not properly
maintained during this re-flash procedure.
Note: A power supply must be connected directly to the 12v battery terminals and NOT the
remote jump posts under the hood (if equipped).

3. VERIFY TECHSTREAM SETUP
a. Verify that the Techstream meets the following conditions:
• The latest version of software is loaded.
• The Techstream battery is fully charged. If not, connect the Techstream to a 120v
source.
• The DLCIII cable is in good condition.
The Techstream’s battery voltage must be maintained during the
update procedure. If necessary, plug the Techstream into a 120v
outlet during this procedure.
Note: If the Techstream’s communication with the vehicle fails during the update
procedure, the Engine ECU will be damaged.

4

VII. UPDATE CALIBRATION
1. UPDATE THE NECESSARY CALIBRATION ID’s
a. Identify the vehicles Current CID for the Engine System on the Stored Data tab.

Current CID

b. Locate the vehicles Current CID in the chart on the following page.
c. Select the corresponding NEW CID link to load the update.
d. Follow the on-screen instructions to complete the Calibration Update procedure.
The CID Update Procedure is detailed in L-SB-0001-18. Please reference this Bulletin for
more detailed procedures and information.

Be extremely careful to select the correct NEW CID that
corresponds to the Current CID.

Note: To insure the update process is completed before turning the ignition off, it is
recommended to add a 10 second delay between step H and step I of L-SB-0001-18.
For example, after the Flash Calibration process has completed (step H), wait 10
seconds before turning off the ignition (step I).
Note: On RX 350/350L models, the Calibration ID for the Transmission will automatically be
updated when the Engine Calibration ID is updated. All other models will only have
Engine System updated.

5

ECU Calibrations

Vehicle Specification
Model

Spec
2WD
S-Mode Shift

2WD
M-Mode Shift

System

Current CID

New CID(s)

Engine

896630E58000
896630EA3000

896630EA3100 / 896650E48100

Transmission

896650E24000
896650E48000

Engine

896630E59000
896630EA5000

Transmission

896650E24000
896650E48000

Engine

896630E60000
896630EA4000

Transmission

896650E24000
896650E48000

Engine

896630E61000
896630EA6000

Transmission

896650E24000
896650E48000

Engine

8966348S6000
8966348W1000

Transmission

896654843000
896654852000

Engine

8966348S7000
8966348W2000

Transmission

896654843000
896654852000

Engine

8966353R2000

8966353R2100

8966353R0000

8966353R0100

8966353R1000

8966353R1100

896632457000

896632457100

896632455000

896632455100

896632456000

896632456100

896633A42000

896633A42100

896633A43000

896633A43100

RX 350
AWD
S-Mode Shift

AWD
M-Mode Shift

2WD
S-Mode Shift
RX 350L
AWD
S-Mode Shift

IS 300

AWD
2WD

IS 350

896630EA4100 / 896650E48100

896630EA6100 / 896650E48100

8966348W1100 / 896654852100

8966348W2100 / 896654852100

Engine
AWD

RC 300

896630EA5100 / 896650E48100

AWD

Engine

2WD
RC 350

Engine
AWD
2WD

GS 350

Engine
AWD

Note: If the Engine and/or Transmission System already have the New CID’s, the campaign is
complete.
Note: On RX 350/350L models, the Calibration ID for the Transmission will automatically be
updated when the Engine Calibration ID is updated. All other models will only have the
Engine System updated.
6

VIII.

COMPLETE REPAIR
1. PERFORM VERIFICATION HEALTH CHECK
a. Using a Techstream, perform a Health Check.
b. Clear DTC’s that may have set during the re-flash
procedure.
c. Re-run the Health Check to confirm that no DTC’s
reappear.
THIS VERIFICATION HEALTH CHECK IS
NECESSARY to update the results and CID’s
to the National database.

2. CONFIRM CID UPDATE
a. On the Stored Data tab, confirm the following for the Engine and Transmission Systems:
•

The Update column lists “No”

MUST say

“No”

7

3. PRINT CUSTOMER HEALTH CHECK REPORT
a. From the Stored Data tab, select the Customer Health Check Report button (TIS will launch
when button is pressed).

Customer Health
Check Button

b.
c.
d.
e.
f.
g.
h.

Log in to TIS.
Input Vehicle Mileage and Repair Order number.
Check the “Performed” campaign button for campaign KLA.
Select the Report button.
Confirm Customer Health Check Report information is correct.
Print Customer Health Check Report from TIS.
Sign and provide to the customer.

4. ATTACH THE AUTHORIZED VEHICLE MODIFICATION LABEL
a. Fill out the label.
b. Affix the label to the under-side of the hood.

1
2
3
4
5

Engine and Transmission (RX) CID’s
(Calibration ID’s)
(Dealer Code)
(Date Completed)
Safety Recall KLA

Calibration ID’s listed for the
Engine and Transmission (RX) System
after completing the final
Health Check. The CID’s will
vary from car to car.

IX. REASSEMBLY
1. REMOVE THE POWER SUPPLY FROM THE BATTERY

8

◄ VERIFY REPAIR QUALITY ►
−
−

Confirm the system Calibration has been updated successfully.
Confirm there are no DTC’s after the Calibration update.

X. APPENDIX
A. PARTS DISPOSAL
As required by Federal Regulations, please make sure all recalled parts (original parts)
removed from the vehicle are disposed of in a manner in which they will not be reused,
unless requested for parts recovery return.
B. CAMPAIGN DESIGNATION DECORDER

H

0

A

Year Campaign is Launched

Repair Phase

Current Campaign Letter
for this year

B = 2011
C = 2012
D = 2013
E = 2014
F = 2015
G = 2016
H = 2017
Etc...

0 = Remedy
1 = Interim (Remedy not yet
available)
will change to
when the Remedy is available
(May use other characters in
unique cases)

1st Campaign = A
2nd Campaign = B
3rd Campaign = C
4th Campaign = D
5th Campaign = E
27th Campaign = 1
28th Campaign = 2
Etc...

Examples:
C1B = Launched in 2012, Interim Phase, 2nd Campaign Launched in 2012
E0A = Launched in 2014, Remedy Phase, 1st Campaign Launched in 2014
H0A = Launched in 2017, Remedy Phase, 1st Campaign Launched in 2017.

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