TECHNICAL INSTRUCTIONS
FOR
SAFETY RECALL 20TA10
HYBRID SYSTEM SOFTWARE UPDATE
CERTAIN 2014 – 2017 PRIUS V
Technical Instructions for the 2013-2015 Prius are in a separate document
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 currently hold at least one of the following certification levels:
- Expert Technician (Hybrid)
- Master Technician
- Master Diagnostic Technician
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
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 Campaign, and that it has not already been completed.
Note: 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
1. PARTS
| Part Number | Part Description | Quantity |
| 00451-00001-LBL* | Authorized Modification Label | 1 |
*Labels can be ordered in packs of 25 from the MDC through the Dealer Daily Website
2. TOOLS, SUPPLIES & EQUIPMENT
- Standard Hand Tools
- Techstream 2.0 / Techstream Lite with software version 13.30 or greater installed
- GR8 Battery Diagnostic Station
- T-SB-0134-16
SST – These Special Service Tools required for this repair:
| Part Number | Tool Name | Quantity |
| 09891-47020 | Inverter Case Separator | 1 |
| Campaign tool | Joint Fuse removal tool | 1 |
Joint Fuse Removal Tool
The fuse removal tools were shipped to the dealers for a previous campaign. Additional tools will also be sent.
IV. BACKGROUND
The involved vehicles were designed to enter a failsafe driving mode in response to certain hybrid system faults. Toyota has found that in rare situations, the vehicle may not enter a fail-safe driving mode as intended. If this occurs, the vehicle could lose power and stall. While power steering and braking would remain operational, a vehicle stall while driving at higher speeds could increase the risk of a crash.
SAFETY RECALL 20TA10 – Hybrid System Software Update – 2013-2015 Toyota Prius & 2014-2017 Prius V
Remedy Instructions and TSB
RCRIT-20V369-0016.pdf 1883.91KB
Latest Recalls Documents
Reprogramming
Approved J2534 Devices only provide reprogramming capabilities and do not support diagnostic scantool functions. For full diagnostic capabilities, please consider TIS Techstream or Techstream Lite
Toyota, Scion, and Lexus ECMs can be reprogrammed with the TIS Techstream, Techstream Lite, Diagnostic Tester, or can also be reprogrammed using a Toyota validated J2534 interface. Vehicle recalibration requires the use of the following:
- TIS Professional Level Subscription
- Toyota Calibration Update Wizard software (installed along with Techstream Software)
- Personal Computer running Microsoft Windows XP/2000 or later operating system
Toyota strongly recommends USING ONLY VALIDATED INTERFACE DEVICES that appear on this list.
Toyota works closely with J2534 interface manufacturers to ensure that their hardware works safely and efficiently with our products. Every device listed on this page has been thoroughly tested and validated on Toyota, Scion, and Lexus vehicles.
It is important to understand that only the specific devices, firmware, DLLs and APIs listed here have been tested by Toyota. We do not recommend use of any other J2534 device, firmware, DLL or API that is not listed here. Changes to J2534 hardware/software is outside of Toyota's control; in some cases, changes made to device hardware/software can negatively impact reprogramming performance. Toyota makes every effort to continue to work with J2534 interface manufacturers to ensure continued product compatibility as our respective products evolve.
J2534 Approved Device Application Chart
| Device Name |
Supplier | Version | CUW Version |
Supported OS | ||
|---|---|---|---|---|---|---|
| Firmware* | DLL* | API* | ||||
| Flasher LT-Import | Bosch Diagnostics | 01.02.07 | 01.02.07 | 04.04 | 8.8 | B, C, D, E |
| Flasher PRO | Bosch Diagnostics | 01.09.18 | 01.09.18 | 04.04 | 8.8 | B, C, D, E |
| Mastertech VCI | Bosch Diagnostics | 13.0.75.27 | 2.0.75.27 | 04.04 | Testing in Progress | B, C, D, E |
|
VSI-2534 |
Dearborn Group | 1.112 | 2.05.22 | 04.04 | 8.10 | C, D |
| Drew Technologies | 01.09.18 | 01.09.18 | 04.04 | 8.8 | B, C, D, E | |
| Mongoose MFC | Drew Technologies | 01.02.07 | 01.02.07 | 04.04 | 8.8 | B, C, D, E |
| Drew Technologies | 1.1.12.0 | 1.1.12.0 | 04.04 | 8.16 | A, B, C, D | |
| Pass Thru Pro II | Snap-On | 01.09.18 | 01.09.18 | 04.04 | 8.8 | B, C, D, E |
*Original validated firmware/DLL versions may be superceded by the device manufacturer. Contact the device manufacturer if you are unable to find the versions listed above.
Supported Operating Systems
| A | Windows 8 (32-bit; 64-bit) |
| B | Windows 7 (32-bit; 64-bit) |
| C | Windows VISTA Home Basic, Home Premium, Business, Ultimate |
| D | Windows XP Pro SP1 or later |
| E | Windows 2000 SP2 or later |
For more information about the J2534 devices listed above, click on the vendor names. To report compatibility problems with listed hardware/software, please contact the device manufacturer.
Obtaining Calibration Files
The Flash Reprogramming Calibration CD is no longer available.
ECU Calibrations are now available for download directly from TIS. A valid TIS Professional Level subscription is required to access Calibration files. These files are compatible with the above mentioned scantools and J2534 interfaces. The Calibration page, located on the Diagnostics tab in the TIS site, contains all the most current vehicle calibration files, applicable Service Bulletins, and instructions for use. Select the following link for step by step instructions to access this page.
Note: Calibration Update Software is now included in the Techstream Software Installer. A valid TIS Professional Level subscription is required to download and install Techstream Software.
https://techinfo.toyota.com
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SEOCONTENT-START
V. INSPECT INVERTER CONDITION 1. Verify Techstream Configuration a. From the menu at the top of the screen, select: Setup / Techstream Configuration. b. Continue to the third setup screen: Required Information. c. Verify that “US Dealer 1” is selected as the User Type. 2. PERFORM HEALTH CHECK a. Using a Techstream, perform a Health Check. If any hybrid DTCs are found that indicate a safety risk while performing this repair, do not proceed until they have been resolved. Note: This Safety Recall covers only the specified ECU updates and Inverter repairs, as detailed in these instructions. It does not cover the diagnosis or replacement of any other parts on the vehicle, including the hybrid system. Are DTC s P0A94, P324E, P3004, or P0A1A present in the Hybrid Control ECU? Proceed to Section VI. REPAIR INVERTER ASSEMBLY on p. 5 Proceed to Section VII. DETERMINE CID STATUS on p. 7 YES No 5 VI. REPAIR INVERTER ASSEMBLY Note: Repairing the inverter is required only if DTCs P0A94, P324E, P3004 or P0A1A are present. If these DTCs are not present, skip to section VII. DETERMINE CID STATUS on p 7. 1. DETERMINE REPAIR COMPONENTS BASED ON DTC DETAIL CODE a. If multiple DTCs are present, save the freeze frame data. b. After saving the freeze frame data, clear codes and confirm what DTCs reset. c. If multiple codes return, follow the repair manual diagnosis procedure for the DTC with Freeze Frame Data Occurrence Order value of “1.” d. Use the correct table below to identify the parts required for repair. The correct parts are listed in the bottom row of each table. 2014 MY PRIUS V DTC DTC DETAIL CODE • IPM • MG ECU • MG-ECU • IPM • MG-ECU • CURRENT SENSOR • IPM • INVERTER ASSY P0A94 127 X 172 X 442 X 547 X 548 X 549 X 550 X 553 X 554 X 555 X 556 X 557 X 564 X 585 X 587 X 589 X 590 X P324E 788 X P0A1A 151 X 155 X 156 X 166 X 200 X 658 X 659 X 791 X 792 X 793 X P3004 131 X 132 X 800 X 801 X PARTS & QUANTITY (QTY) 04899-47021 (1) 08887-02809 (2) 04899-47060 (1) 08826-00100 (1) 90430-18008 (1) 00272-SLLC2 (1) G920H-47040 (1) 04899-47060 (1) 08826-00100 (1) G920H-47040 (1) 04899-47021 (1) 08887-02809 (2) 04899-47060 (1) 08826-00100 (1) 90430-18008 (1) 00272-SLLC2 (1) G920H-47040 (1) G920J-52010 (1) 04899-47021 (1) 08887-02809 (2) 04899-47060 (1) 08826-00100 (1) 90430-18008 (1) 00272-SLLC2 (1) ORDER INVERTER BY VIN 2015-2017 MY PRIUS V DTC DTC DETAIL CODE • IPM • MG-ECU • MG-ECU • IPM • MG-ECU • CURRENT SENSOR • IPM INVERTER ASSY P0A94 127 X 172 X 550 X 553 X 557 X P324E 788 X P0A1A 151 X 166 X 517 X 658 X 791 X 809 X P3004 131 X 132 X 800 X 801 X PARTS & QUANTITY (QTY) 04899-47021 (1) 08887-02809 (2) 04899-47060 (1) 08826-00100 (1) 90430-18008 (1) 00272-SLLC2 (1) G920H-47040 (1) 04899-47060 (1) 08826-00100 (1) G920H-47040 (1) 04899-47021 (1) 08887-02809 (2) 04899-47060 (1) 08826-00100 (1) 90430-18008 (1) 00272-SLLC2 (1) G920H-47040 (1) G920J-52010 (1) 04899-47021 (1) 08887-02809 (2) 04899-47060 (1) 08826-00100 (1) 90430-18008 (1) 00272-SLLC2 (1) ORDER INVERTER BY VIN Thermal grease for IPM replacement is NOT interchangeable. Only grease specified for the Prius V inverter can be used. Grease for the Highlander IPM replacement will result in inverter failure if used. 2. TO REPAIR THE INVERTER, CLICK ON THE RELEVANT LINK BELOW: 2014 Prius V: Intelligent Power Module Transistor Removal 2015 Prius V: Intelligent Power Module Transistor Removal 2016 Prius V: Intelligent Power Module Transistor Removal 2017 Prius V: Intelligent Power Module Transistor Removal 7 VII. DETERMINE CID STATUS 1. DETERMINE STATUS of HYBRID CONTROL SYSTEM CIDs a. Locate the Update column for the Hybrid Control System in the Stored Data tab. b. Determine the status of CID’s #1 for the Hybrid Control ECU; indicated by a YES or NO in the Update column. CID’s #1 Status of available Update Diagram shown is from a Prius. Prius V will be similar. Does CID #1 of the Hybrid Control System indicate there is a UPDATE available? Proceed to Section VIII. Vehicle Preparation on p. 8 Proceed to Section XI. Complete Repair on p.15 YES No VIII. VEHICLE PREPARATION The ECU reprograming procedure is detailed in T-SB-0134-16. Reference this Bulletin for additional detailed procedures and information. 1. VEHICLE BASICS 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. Headlights, wipers, climate control, audio system, etc.) 2. CONNECT THE 12v BATTERY TO A POWER SUPPLY (GR8) a. Connect the DCA-800, 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: • Current version of software is installed (reference TIS for latest software version). • The Techstream battery is fully charged. If not, connect the Techstream to a 120v source. • The DLCIII cable is in good condition. The Techstream battery must be maintained during the update procedure. If necessary, plug the Techstream into a 120v outlet to ensure that a failure does not occur. Note: If the Techstream communication with the vehicle fails during the re-flash procedure, the ECU will be damaged and must be replaced. 4. MAINTAIN BRAKE SYSTEM PRESSURE a. Depress the brake pedal fully 2 times within 2 seconds. Note: You may hear the hydro-boost pump run for a few seconds when completing these steps. This procedure will prevent the pump from running during the calibration update procedure. 9 5. REMOVE JOINT FUSE FROM ENGINE ROOM FUSE BOX a. Confirm the joint fuse orientation before removal because the fuse can be installed in either direction. b. Using the fuse puller remove the joint fuse that encases the CDS (30A), RDI (30A) and HTR (50A). Permanent damage to the ECUs can happen if these fuses are not removed. Removing these fuses will stop the vehicle from performing onboard diagnostic tests during the update, which could cause the update to fail and damage the ECU. IX. CUWC APPLICATION 1. INSTALL CUWC FILE INSTALLER (Only required once for each Techstream) a. In TIS, select the following: • TIS / Diagnostics / Reprogramming b. On the right side of the screen, select the following from the Reference Documents: • CUWC Reprogramming Installer • Follow the on-screen instructions to complete the installation. Note: The installation of the CUWC Reprogramming Installer will only need to be completed one time for each Techstream. (cont. on next page) 11 Permanent damage to the ECUs will occur if the following actions are attempted during the CID update procedure: • Attempt to close the CUWC installer • Attempt to close the Calibration Wizard • Turning off the vehicle’s ignition • Turning off the Techstream • Unplugging the Techstream from the vehicle while programming is in process The following message will appear when the CUWC installation application is running. This image cannot be closed manually. When the installation of all necessary CIDs is complete, the image will close. Message displayed during CID update process: (cont. on next page) X. CID INSTALLATION Determine the model year of this vehicle Proceed to Step #1 on p. 12 Proceed to Step #2 on p. 14 2014 2015 2016 2017 1. 2014 MY: INSTALLATION OF CIDS a. Identify the Hybrid Control CID’s #3 & #4 from the Stored Data tab. b. Referencing the chart on the next page, identify the matching CID #3 & #4. c. Select the Group # link (blue text) to begin the update process. d. Follow the instruction on the screen to complete the installation. e. When CID installation is completed, skip to Section XII. COMPLETE REPAIR on p. 15. 2014 MY ONLY CID’s #3 & #4 Diagram shown if from a Prius. Prius V will be similar. 13 Model CID # Original Current 2014 Prius V CID #1 896B34711000 896B34711100 896B34727000 896B34727100 2014 Prius V #1 896B34727200 896B34761100 896B34727300 896B54705100 896B34761000 898844706400 896B34764000 898844707400 CID #2 896B54705000 896B54705100 896B54709000 896B54712000 CID #3 898844706100 898844706200 898844706300 898844706400 CID #4 898844707100 898844707200 898844707200 898844707400 2014 Prius V CID #1 896B34711000 896B34711100 896B34727000 2014 Prius V #2 896B34727100 896B34761100 896B34727200 896B54705100 896B34727300 898844712300 896B34761000 898844713300 896B34764000 CID #2 896B54705000 896B54705100 896B54709000 896B54712000 CID #3 898844712000 898844712100 898844712200 898844712300 CID #4 898844713000 898844713100 898844713200 898844713300 2. 2015 – 2017 MY: INSTALLATION OF CIDS a. Identify the Hybrid Control CID #1 from the Stored Data tab. b. Referencing the correct chart below, identify the chart that has the matching CID #1. c. Select the link (blue text) on that row to begin the update process. d. Follow the instruction on the screen to complete the installation. 2015 – 2017 MY ONLY CID #1 Diagram shown is from a Prius. Prius V will be similar. Model CID # MY Original Current 2015 – 2017 Prius V CID #1 2015-2016 896B34755000 896B34755100 2017 899834753000 899834753100 15 XI. COMPLETE REPAIR 1. REINSTALL JOINT FUSE INTO ENGINE ROOM FUSE BOX a. Confirm the joint fuse orientation before reinstalling because the joint fuse can be installed in either direction. b. Reinstall the joint fuse that encases the CDS (30A), RDI (30A) and HTR (50A). BE SURE TO ORIENT THE FUSE AS SHOWN ON THE FUSE BLOCK COVER. 2. PERFORM VERIFICATION HEALTH CHECK a. Using a Techstream, perform a Health Check. c. Clear DTCs that may have set during the re-flash procedure. d. Re-run the Health Check to confirm that no DTCs reappear. THIS VERIFICATION HEALTH CHECK IS NECESSARY to update the results and CIDs to the National database. 3. CONFIRM CID UPDATE a. On the Stored Data tab, confirm the following for the Hybrid Control System: • The Update column lists “No” for CID #1 CID #1 MUST say “NO” 4. 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). b. Log in to TIS. c. Input Vehicle Mileage and Repair Order number. d. Check the “Performed” campaign button for campaign 20TA10. e. Select the Report button. a. Confirm Customer Health Check Report information is correct. b. Print Customer Health Check Report from TIS. c. Sign and provide to the customer. Customer Health Check Button 17 5. ATTACH THE AUTHORIZED VEHICLE MODIFICATION LABEL a. Fill out the label. b. Affix the label to the under-side of the hood. 1 Hybrid Control System 2 (Calibration IDs) 3 (Dealer Code) 4 (Date Completed) 5 Safety Recall 20TA10 Calibration IDs listed for the Hybrid Control System after completing the final Health Check. The CIDs will vary from car to car. ◄ VERIFY REPAIR QUALITY ► − Confirm all ECM Calibration has been updated successfully to the NEW CID. − Confirm that the Authorized Modification Label has been installed If you have any questions regarding this Safety Recall, please contact your regional representative XII. 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 19 19 = 2019 20 = 2020 21 = 2021 22 = 2022 23 = 2023 Etc… Year Campaign is Launched 19TA01 T T = Toyota L = Lexus Vehicle Make A A = Safety Recall Remedy B = Safety Recall Interim C = Special Service Campaign D = Limited Service Campaign E = Customer Support Program F = Emissions Recall (May use other characters in unique cases) Field Action Category and Phase 01 01 = 1st Field Action of the year 02 = 2nd Field Action of the year 03 = 3rd Field Action of the year (The sequence is unique for each Field Action category) (May use other characters in unique cases) Field Action Sequence 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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