TECHNICAL INSTRUCTIONS
FOR
SPECIAL SERVICE CAMPAIGN 25TC07

Blind Spot Monitor System Reprogramming
CERTAIN 2024 Model Year Tacoma and Tacoma HV

Updated
6.6.2025 – IX Step 3. Added Confirmation Step
5.20.2025 – VII Step 2. Cooling Fan Connector Image Updated

The repair quality of covered vehicles is extremely important to Toyota. All dealership technicians
performing this recall are required to successfully complete the most current version of the E-Learning
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 complete the following
course:
•

TIC206A – Electrical Repair 1

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

The flow chart is for reference only. DO NOT use it in place of the full technical instructions. Follow ALL
steps as outlined in the full technical instructions to confirm the campaign is completed correctly.

II. IDENTIFICATION OF AFFECTED VEHICLES

1. CHECK VEHICLE FOR CAMPAIGN ELIGIBILITY
a. Compare the vehicles VIN to the VIN listed on the Repair Order to ensure they match.
b. Check the TIS Vehicle Inquiry System to confirm the VIN is involved in this recall, and that it has not already
been completed.
NOTICE:
TMNA warranty will not reimburse dealers for repairs completed on vehicles that are not affected or were
previously completed, even by another dealer.

III. PREPARATION
A. TOOLS & EQUIPMENT
•
•
•

Standard Hand Tools
• DCA-8000 Battery Diagnostic Station
T-SB-0021-25
Techstream ADVi / Techstream 2.0 / Techstream Lite

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IV. BACKGROUND
The subject vehicles are equipped with a Trailer Blind Spot Monitor (TBSM) system, which consists of two Blind Spot
Monitor (BSM) sensors. Due to the programming of the BSM sensors, the TBSM system may not be able to detect the
extended area for the trailer under certain operating conditions as described in the owner’s manual.

V. SAFETY PRECAUTIONS
CRITICAL INFORMATION - READ THOROUGHLY
An ECU could be damaged if an error occurs in the communication while reprogramming the ECU. Confirm all work
is performed as described in these instructions.

1. STABILIZE THE POWER TO THE PERSONAL COMPUTER SIDE
a. Be sure to connect the personal computer to an external AC power
supply.
NOTICE:
The ECU could be damaged if the battery voltage of the personal
computer drops while reprogramming.

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b. Turn off the screen saver and power saving mode of the personal
computer so that the power to the hard disk is kept supplied.
NOTICE:
If the screen saver or power saving mode launches while
reprogramming, the communication may be disconnected, resulting in
the damage of the ECU.
c. DO NOT block the ventilation opening for the cooling fan of the
personal computer.
NOTICE:
If the ventilation opening for the cooling fan is blocked with a sheet
cover or the like, the personal computer may be heated excessively,
causing the operation of the personal computer to stop.
Due to the stop of the operation, the communication for reprogramming
signals could be stopped, resulting in the damage of the ECU.

VI. Blind Spot Monitor CALIBRATION ID VERIFICATION
1. CHECK FOR DTC’S
a. Using a Techstream, perform a Health Check to check for any
Diagnostic Trouble Codes.
NOTICE:
This Campaign covers only the software update to the Blind Spot
Monitor System, as detailed in these instructions. It does not cover the
diagnosis or replacement of any other systems on the vehicle.

NOTE:
Before completing Health Check, “Send Vehicle Information” window
may be displayed. If displayed, then click “Yes” to send the vehicle
information.
•
If “Failed to send data to the server” is displayed, click “No” to close
the window and proceed to the next step.

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2. CHECK CURRENT CALIBRATION
a. Locate the Update column for the Blind Spot Monitor in the Stored Data tab for this vehicle.
The calibration IDs to re-flash in this campaign are as shown in the table below.
Blind Spot Monitor Sensor Calibrations
Vehicle Model

System

TACOMA
TACOMA HYBRID

Blind Spot Monitor “A”
Blind Spot Monitor “B”

Calibration ID
Current
NEW
8816FAK02202
8816FAK02302
8816FAK02201
8816FAK02301

*Download file is the same for both Blind Spot Monitor “A” and “B”

Yes

Proceed to section VII.

Is there an update available for
the Blind Spot Monitor System?

No

Campaign complete. Return the
vehicle to the customer.

◄ CRITICAL MESSAGE ►
It is critical that T-SB-0021-25 in addition to the Technical Instructions for this Safety Recall are followed. This TSB
outlines all steps necessary to prevent reprogramming failure. Toyota will not provide reimbursement coverage for
reprogramming failures if this TSB is not followed. If you have a reprogramming failure that requires Blind Spot Monitor
ECU replacement and the Technical Instructions and TSB were followed correctly, please create a case with the
Technical Assistance Hotline documenting all information related to the failure. If sufficient reporting is received related
to re-flash failure, there will be consideration for reimbursement.

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VII. 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.

DISCONNECT THE COOLING FAN MOTOR
CONNECTOR.

Notice: • If you reprogram without disconnecting the
cooling fan motor connector, the electric fan operates
during reprogramming, causing a decrease of the battery
voltage and the reprogramming processes will be
disabled. This may result in damage of the ECU.
•After disconnecting the cooling fan motor connector,
make sure that dirt, water or other foreign matter does not
contact the cooling fan motor connector.
Front of Vehicle

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.

3. CONNECT THE 12V BATTERY TO A POWER
SUPPLY
a) Connect the DCA-8000 or other type of power
supply (not a battery charger) to the 12 V
battery.
b) Tap the Reflash icon from the Main Menu
screen of the DCA-8000.
*a

Battery charger

NOTICE:
A power supply must be connected directly to the 12V battery terminals and NOT the remote jump posts under
the hood (if equipped).

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For Hybrid Only:
ACCESS AUXILLARY BATTERY
Remove 3 PINS FROM FRONT OF THE SEAT
a) Remove 3 pins and lift seat up
b) Connect the DCA-8000 or other type of power
supply (not a battery charger) to the Auxiliary 12V
battery.
C) Tap the Reflash icon from the Main Menu screen
of the DCA-8000.

4. 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 120 V source.
• The DLCIII cable is in good condition.
The Techstream’s battery voltage must also be maintained during the re-flash procedure. If
necessary, plug the Techstream into a 120v outlet during this procedure.
NOTICE:
If the Techstream communication with the vehicle fails during the re-flash procedure, the ECU will be
damaged.

VIII.

UPDATE CALIBRATION
1. PERFORM VEHICLE HEALTH CHECK

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2. CONFIRM THE ECU CALIBRATION ID
a. Confirm the current calibration ID in the Blind Spot Monitor System.

The calibration IDs to re-flash in this campaign are as shown in the table below.
Blind Spot Monitor Sensor Calibrations
Vehicle Model

System

TACOMA
TACOMA HYBRID

Blind Spot Monitor “A”
Blind Spot Monitor “B”

Calibration ID
Current
NEW
8816FAK02202
8816FAK02302
8816FAK02201
8816FAK02301

3.

REFLASH THE BLIND SPOT MONITOR SYSTEM
a. Click yes on the health check results screen or follow the links on the table above to begin the reflash
process.
NOTICE:
Reflash failure should be extremely rare and can be avoided by following all instructions and reprogramming
best practices.

4. LAUNCH CALIBRATION WIZARD
a. Select “Next”

5. SELECT A DEVICE TOOL
a. Select “Next”

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6.

CONFIRM THAT "NEW CAL ID" IS CORRECT, AND THEN
CLICK ON “NEXT”.
Note: If the incorrect CAL ID file is selected it is not possible to
move onto the re calibration.

7.

TURN THE IGNITION OFF, THEN CLICK “NEXT”

8.

FOLLOW THE ON-SCREEN INSTRUCTIONS AND
CONFIRM THE FOLLOWING, THEN CLICK “NEXT”

a.
b.
c.
d.

PC is connected to VIM.
Ignition is ON and engine is OFF
Do not apply an electrical load to the vehicle.
Battery voltage is above 12.0V

Notice for Hybrid Models: DO NOT turn the IG ON with the brake
pedal depressed.

9.

PERFORM SECURITY SIGNATURE TO THE SERVER,
THEN HIT “NEXT”
a. Follow the instructions on screen

Hint: The reprogramming will not begin without the security
signature.

10. LOGIN TO TIS
a. Input TIS login credentials and select “Login”
Note: This step requires internet.

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11. PERFORM SECURITY SIGNATURE TO THE SERVER
a. Input TIS login credentials and select “Login”.

12. PERFORM SECURITY SIGNATURE TO THE SERVER
a. Select “Send”

13. COPY SIGNATURE FROM TIS
b. Select “Copy to Clipboard”

14. PASTE SIGNATURE INTO TECHSTREAM, THEN SELECT
“NEXT”

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15. RECALIBRATION WILL NOW BEGIN
a. Do Not disturb the vehicle during flash reprogramming.

16. RECALIBRATION FINISHED
a. The following Screens will appear at the end of the reflash.

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17. TURN THE IGNITION OFF FOR A MINIMUM OF 10
SECONDS, THEN CLICK “NEXT”

18. TURN THE IGNITION TO THE ON POSITION, THEN CLICK
“NEXT”

19. CONFIRM CALIBRATIONS WERE SUCCESSFULLY
UPDATED THEN CLICK “FINISH”

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IX. COMPLETE REPAIR
1.

DISCONNECT THE DCA-8000

2. 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.

3. CONFIRM THE CONDITION IS NO LONGER PRESENT
a. The Trailer Driving Assist Active message will either
• No longer be displayed.
OR
• Need to be cleared by selecting YES on the “No Trailer Detected” pop up message after moving
forward at a speed greater than 6 mph (10 km/h) for at least 10 seconds.
4. COMPLETE HEALTH CHECK AND CONFIRM CID UPDATE
a. On the Stored Data tab, confirm the following for the Blind Spot Monitor System:
• The Calibration number has the “New CID” number.
• The Update column lists “No”

5.

CONFIRM THE COOLING FAN HAS BEEN RECONNECTED
Confirm the CID's has been updated successfully to the NEW CID's by someone other than the
individual who performed the repair.

a. Confirm Customer Health Check Report information is correct.
b. Print Customer Health Check Report from TIS.
c. Sign and provide to the customer.
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−
−
−
−
−

◄ VERIFY REPAIR QUALITY ►
Confirm the Blind Spot Monitor ECU Calibration has been updated successfully to the NEW CID.
Confirm the Cooling Fan has been reconnected
Confirm there are no DTC’s after the Calibration update.
Confirm the condition is no longer present
If you have any questions regarding this Campaign, please contact your regional representative

X.

APPENDIX

A.

CAMPAIGN DESIGNATION DECODER

Examples:
19TA01 = Launched in 2019, Toyota, Safety Recall Remedy Phase, 1st Safety Recall Launched in 2019
20TC02 = Launched in 2020, Special Service Campaign, 2nd Special Service Campaign Launched in 2020
21TE05 = Launched in 2021, Customer Support Program, 5th Customer Support Program Launched in 2021

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