December 17, 2020 NHTSA CAMPAIGN NUMBER: 20V798000
Loss of Drive Power from DC-DC Converter Shutdown
A loss of drive power can increase the risk of a crash.
NHTSA Campaign Number: 20V798
Manufacturer Honda
(American Honda Motor Co.)
Components ELECTRICAL SYSTEM
Potential Number of Units Affected 27,838
Summary
Honda (American Honda Motor Co.) is recalling certain 2020 CR-V Hybrid, Accord Hybrid, and 2020-2021 Insight vehicles. The DC-DC converter may shut down and prevent the 12-volt battery from recharging, possibly resulting in a loss of drive power.
Remedy
Honda will notify owners, and dealers will update the power converter unit (PCU) software, free of charge. The recall began February 12, 2021. Owners can contact Honda customer service at 1-888-234-2138. Honda’s number for this recall is K9E.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Check if your Honda has a Recall
AFFECTED VEHICLES
| Year | Model | Trim Level | VIN Range |
| 2020 | Accord Hybrid | ALL | Check the iN VIN status for eligibility. |
| 2020 | CR-V Hybrid | ALL | Check the iN VIN status for eligibility. |
| 2020-21 | Insight | ALL | Check the iN VIN status for eligibility. |
BACKGROUND
Due to programming issues in the Power Control Unit (PCU), the DC-DC converter unit may generate excessive voltage, triggering the failsafe mode in the power supply control program. In this condition, the DC-DC converter unit is unable to supply power to the 12V battery, which may result in the illumination of the 12V battery warning light and a warning message to be displayed. If the vehicle continues to be driven in this condition, it may decrease driver assistance and could eventually stop running.
CUSTOMER NOTIFICATION
Owners of affected vehicles will be sent a notification of this campaign.
Do an iN VIN status inquiry to make sure the vehicle is shown as eligible.
Some vehicles affected by this campaign may be in your new or used vehicle inventory.
Failure to repair a vehicle subject to a recall or campaign may subject your dealership to claims or lawsuits from the customer or anyone else harmed as a result of such failure. Before selling a vehicle in inventory, always check if it is affected by a safety recall by conducting a VIN status inquiry.
CORRECTIVE ACTION
Update the PCU (EV/HEV/IMA Motor System) software.
SOFTWARE INFORMATION
NOTE
Unnecessary or incorrect repairs resulting from a failure to update the diagnostic and reprogramming software are not covered under warranty.
Before beginning the repair, make sure all diagnostic and reprogramming software are updated as listed.
| i-HDS Software Version | 1.006.013 or later |
| HDS Software Version | 3.104.014 or later |
| J2534 Rewrite Software Information | |
| PC Application Version | 1.2.1.1 |
| Database Update | 10-DEC-2020 or later |
| NoticeDB Version | 09-DEC-2020 or later |
Update only the systems and software listed in this service bulletin.
American Honda has validated and approved the Denso DST-i as the vehicle communication interface (VCI) to support this service bulletin.
For more information about updating vehicle systems, refer to service bulletin 01-023, Updating Control Units/Modules.
| Year/Model | Vehicle System | Program ID (or later) |
| 2020 CR-V Hybrid | PCU | 1K021-5RD-A020 |
| 2020 Accord Hybrid | PCU | 1K021-6C2-A220 |
| 2020 Insight | PCU | 1K021-6L2-A220 |
| 2021 Insight | PCU | 1K021-6L2-A420 |
REPAIR PROCEDURE
NOTICE
- Make sure the 12-volt battery is fully charged before starting an update.
- Connect a fully charged jumper battery to the vehicle, and leave it connected during the entire procedure to maintain steady voltage.
- Do not use the GR8 because the vehicle requires a steady electrical current.
- Control module failure caused by the improper completion of a software update (early key cycle, low battery voltage, disconnected DLC cable, etc.) is not covered by warranty.
- If an error occurs during the update or the i-HDS freezes, do not disconnect the battery or turn the ignition to OFF. Reboot the i-HDS, and start over.
- To prevent control unit damage, do not operate anything electrical (headlights, audio system, brakes, A/C, power windows, door locks, etc.) during the update.
- Warranty reimbursement for technician labor is not allowed for routine checking/installation of any available software update.
NOTE
This update will not require entering a service bulletin number.
- Update the PCU software using the J2534 Rewrite software with the DST-i. Refer to service bulletin 01-023, Updating Control Units/Modules.
- Do the CKP pattern learn procedure. Refer to the service information.
END
For Immediate Release
Statement by American Honda Regarding
Hybrid Power Control Unit Software Recall: 2020 Honda Accord Hybrid, 2020
Honda CR-V Hybrid and 2020-2021 Honda Insight
- 27,838 vehicles are affected in the United States
- Hybrid PCU software will be updated, for free
- No reported crashes or injuries related to this issue
TORRANCE, Calif. – Dec. 22, 2020 – Honda will voluntarily recall 27,838 model-year
2020 Accord Hybrid, 2020 CR-V Hybrid and 2020-2021 Insight vehicles in the United States to update software in the Hybrid Power Control Unit (PCU). Under certain circumstances, the portion of the PCU that controls charging of the 12 volt accessory battery may malfunction, sending the PCU into a “fail safe” mode, preventing battery charging and activating warning displays for the driver. Since a charged 12 volt battery is required for proper vehicle function, this condition may cause a vehicle to stall while driving, potentially increasing the risk of a crash. Honda has received no reports of crashes or injuries related to this issue.
Honda is announcing this recall to encourage each owner of an affected vehicle to take it to an authorized dealer as soon as they receive notification of this recall from Honda. Mailed notification to owners will begin in late-Feb. 2021. Owners can also
determine if their specific vehicles are included in the recall by visiting www.recalls.honda.com or by calling (888) 234-2138.
# # #
Honda ● 1919 Torrance Blvd. ● Torrance, California 90501-2746 ● Phone (310) 783-3170 ● Fax (310) 783-3622
Media Web Site: www.hondanews.com Consumer Web Site: www.honda.com
Defect Information Report
Name of manufacturer:
Honda Manufacturing of Indiana, LLC
Honda of America Mfg., Inc.
Manufacturer’s agent:
Jeff Chang
American Honda Motor Co., Inc.
1919 Torrance Blvd.
Torrance, CA 90501-2746
Identification of potentially affected vehicles:
| Make/Model | Model Year | Dates of Manufacture | Number of Vehicles |
| Honda Accord Hybrid | 2020 | 10/21/2019 to 06/11/2020 | 10,385 |
| Honda CR-V Hybrid | 2020 | 01/16/2020 to 06/05/2020 | 4,728 |
| Honda Insight | 2020 | 10/21/2019 to 05/13/2020 | 12,601 |
| Honda Insight | 2021 | 05/18/2020 to 06/01/2020 | 124 |
Description of the basis for the determination of the recall population:
The recall population was determined based on manufacturing records. The manufacturing range reflects all possible vehicles that could potentially experience the problem.
Description of how the vehicles being recalled differ from similar vehicles not included in the recall:
Only certain vehicles with a power converter unit (PCU) installed that contains transistors with a high concentration of dopant injections are included in the recall. Similar vehicles not included in the recall had PCUs installed that contain transistors with an appropriate concentration of dopant injections.
Identification of affected component:
Component: PCU Assy.
Part No.:
| Accord Hybrid | 2020 | 1B000-6C2-A21 | 1B000-6C2-C21 |
| CR-V Hybrid | 2020 | 1B000-5RD-A02 | |
| Insight | 2020 | 1B000-6L2-A21 | 1B000-6L2-C21 |
| 2021 | 1B000-6LS-A41 | 1B000-6LS-C41 |
Country of Origin: Japan
Manufacturer: Mitsubishi Electric Corporation
Total number of potentially affected vehicles: 27,838
Percentage of affected vehicles that contain the defect: 2%
Defect description:
The DC-DC converter on certain PCUs contain transistors with a high concentration of dopant injections. The increased doping, along with cold ambient temperatures, could amplify the voltage output and shut down the DC-DC converter due to overvoltage, which prevents the 12volt battery from recharging. If vehicle operation continues after illumination of the 12-volt battery system charging indicator, a depleted 12-volt battery can restrict or eliminate motive power, increasing the risk of a crash.
Chronology:
November 2019 to March 2020
Honda launched investigations in the U.S. and several global markets that received reports of
DC-DC converter failure. The supplier’s assembly processes were evaluated, and Honda found that there were no specifications for the application of dopant injections to the transistors on the DC-DC converter. The supplier began monitoring for high concentrations of dopant injections in the transistors, which Honda identified to be the cause of the increased voltage in the DC-DC converter in low ambient temperatures. The increased voltage inadvertently activated a test circuit only used during vehicle manufacturing, which amplified the DC-DC converter voltage output. Voltage output above the system’s threshold could result in overvoltage and shut down the DC-DC converter.
July to November 2020
Honda examined the multitude of scenarios potentially occurring due to DC-DC converter failure and the inability to recharge the 12-volt battery. The failure mode was also confirmed during recreation testing in different hybrid electric vehicle models installed with the same PCU and DCDC converter.
December 10, 2020
Honda determined that a defect related to motor vehicle safety existed and decided to conduct a safety recall.
As of December 10, 2020, Honda has received 53 warranty claims, 65 field reports, and no reports of crashes or injuries related to this issue.
Program for remedying the defect:
Registered owners of all affected vehicles will be contacted by mail and asked to take their vehicle to an authorized Honda dealer. The dealer will update the PCU software program for free. Owners who have paid to have these repairs completed at their own expense will be eligible for reimbursement, in accord with the recall reimbursement plan on file with NHTSA. 573.6(c)(8)(ii)
The estimated date to start notification to dealers: December 18, 2020
The estimated date to start notifications to owners: February 25, 2021
Representative copies of all notices, bulletins and other communications:
A copy of the dealer service bulletin, the final customer notification letter, and other dealer communications will be submitted to your office as soon as possible.
A draft of the owner notification letter will be submitted to your office as soon as possible.
Manufacturer’s campaign number: K9E
SEOCONTENT-START
December 17, 2020
Mr. Jeffrey Giuseppe
Associate Administrator for Enforcement
National Highway Traffic Safety Administration
Attn: Recall Management Division (NVS-215)
1200 New Jersey Avenue, SE
Washington, D.C. 20590
Re: Part 573, Defect Information Report
2020 Model Year Honda Accord Hybrid
2020 Model Year Honda CR-V Hybrid
2020-2021 Model Year Honda Insight
Power Converter Unit / DC-DC Converter
Dear Mr. Giuseppe:
In accordance with the National Traffic and Motor Vehicle Safety Act and 49 CFR Part 573
Defect and Noncompliance and Responsibility Reports, Honda is submitting the enclosed
Defect Information Report regarding a safety recall of certain 2020-2021 model year Honda
Accord Hybrid, CR-V Hybrid, and Insight vehicles to address a defect with the power
converter unit / DC-DC converter.
If you have any questions about this report, please feel free to contact me.
Sincerely,
AMERICAN HONDA MOTOR CO., INC.
Jeff Chang
Senior Manager
Product Regulatory Office
JC:wvt
American Honda Motor Co., Inc.
1919 Torrance Boulevard
Torrance, CA 90501-2746
Phone (310) 783-2000
Defect Information Report
573.6(c)(1)
Name of manufacturer: Honda Manufacturing of Indiana, LLC
Honda of America Mfg., Inc.
Manufacturer’s agent: Jeff Chang
American Honda Motor Co., Inc.
1919 Torrance Blvd.
Torrance, CA 90501-2746
573.6(c)(2)
Identification of potentially affected vehicles:
Description of the basis for the determination of the recall population:
The recall population was determined based on manufacturing records. The manufacturing range reflects all possible vehicles that could potentially experience the problem.
Description of how the vehicles being recalled differ from similar vehicles not included in the recall:
Only certain vehicles with a power converter unit (PCU) installed that contains transistors with a high concentration of dopant injections are included in the recall. Similar vehicles not included in the recall had PCUs installed that contain transistors with an appropriate concentration of dopant injections.
Identification of affected component:
Component: PCU Assy.
Part No.:
Accord Hybrid
2020
1B000-6C2-A21
1B000-6C2-C21
CR-V Hybrid
2020
1B000-5RD-A02
Insight
2020
1B000-6L2-A21
1B000-6L2-C21
2021
1B000-6LS-A41
1B000-6LS-C41
Country of Origin: Japan
Manufacturer: Mitsubishi Electric Corporation
573.6(c)(3)
Total number of potentially affected vehicles: 27,838
Make/Model
Model Year
Dates of Manufacture
Number of Vehicles
Honda Accord Hybrid
2020
10/21/2019 to 06/11/2020
10,385
Honda CR-V Hybrid
2020
01/16/2020 to 06/05/2020
4,728
Honda Insight
2020
10/21/2019 to 05/13/2020
12,601
Honda Insight
2021
05/18/2020 to 06/01/2020
124
573.6(c)(4)
Percentage of affected vehicles that contain the defect: 2%
573.6(c)(5)
Defect description:
The DC-DC converter on certain PCUs contain transistors with a high concentration of dopant injections. The increased doping, along with cold ambient temperatures, could amplify the voltage output and shut down the DC-DC converter due to overvoltage, which prevents the 12-volt battery from recharging. If vehicle operation continues after illumination of the 12-volt battery system charging indicator, a depleted 12-volt battery can restrict or eliminate motive power, increasing the risk of a crash.
573.6(c)(6)
Chronology:
November 2019 to March 2020
Honda launched investigations in the U.S. and several global markets that received reports of DC-DC converter failure. The supplier’s assembly processes were evaluated, and Honda found that there were no specifications for the application of dopant injections to the transistors on the DC-DC converter. The supplier began monitoring for high concentrations of dopant injections in the transistors, which Honda identified to be the cause of the increased voltage in the DC-DC converter in low ambient temperatures. The increased voltage inadvertently activated a test circuit only used during vehicle manufacturing, which amplified the DC-DC converter voltage output. Voltage output above the system’s threshold could result in overvoltage and shut down the DC-DC converter.
July to November 2020
Honda examined the multitude of scenarios potentially occurring due to DC-DC converter failure and the inability to recharge the 12-volt battery. The failure mode was also confirmed during re-creation testing in different hybrid electric vehicle models installed with the same PCU and DC-DC converter.
December 10, 2020
Honda determined that a defect related to motor vehicle safety existed and decided to conduct a safety recall.
As of December 10, 2020, Honda has received 53 warranty claims, 65 field reports, and no reports of crashes or injuries related to this issue.
573.6(c)(8)(i)
Program for remedying the defect:
Registered owners of all affected vehicles will be contacted by mail and asked to take their vehicle to an authorized Honda dealer. The dealer will update the PCU software program for free. Owners who have paid to have these repairs completed at their own expense will be eligible for reimbursement, in accord with the recall reimbursement plan on file with NHTSA.
573.6(c)(8)(ii)
The estimated date to start notification to dealers: December 18, 2020
The estimated date to start notifications to owners: February 25, 2021
573.6(c)(10)
Representative copies of all notices, bulletins and other communications:
A copy of the dealer service bulletin, the final customer notification letter, and other dealer communications will be submitted to your office as soon as possible.
A draft of the owner notification letter will be submitted to your office as soon as possible.
573.6(c)(11)
Manufacturer’s campaign number: K9E
************** NHTSA Recall Number: 20V-798
Honda Campaign Number: K9E
Service Bulletin Number: 20-124
AUTOMOBILE DIVISION
American Honda Motor Co., Inc.
1919 Torrance Blvd., P.O. Box 2215
Torrance, CA 90509-9870
February 2021
Dear FIRSTNAME LASTNAME,
This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Honda has decided that a defect which relates to motor vehicle safety exists in certain 2020 model year Accord Hybrid, 2020 model year CR-V Hybrid, and 2020 – 2021 model year Insight vehicles.
Why my vehicle is under recall: Under certain circumstances, the DC-DC converter may shut down, preventing the 12-volt battery from recharging and activating warning displays (pictured at right). If the vehicle continues to be driven in this condition, it may result in a loss of drive power, increasing the risk of a crash.
What Honda will do: Your Honda dealer will update the power converter unit (PCU) software program for FREE. Honda estimates that the repair will take approximately 30 minutes to complete. However, your dealer can provide you with a better estimate of the overall time for this service visit, as it may be necessary to make your vehicle available for a longer period of time.
What we need you to do:
•Check recall information for your vehicle by accessing the Honda Recall Lookup toolat www.recalls.honda.com and entering your Vehicle Identification Number (VIN).
•If you have questions or concerns, we encourage you to:
ocall American Honda’s Customer Support & Campaign Center at 1-888-234-2138Monday through Friday, 6:00 a.m. to 5:00 p.m., Pacific Time; or
ocontact your local Honda automobile dealer; or
oemail or chat by going to www.owners.honda.com/help/customer-relations; or
ovisit Twitter @HondaCustSvc; or
ovisit www.recalls.honda.com to use “Ask Dave”, our 24/7 virtual agent.
If you paid out of pocket to have these specific recall repairs performed on your vehicle, you may be eligible for reimbursement; please contact American Honda’s Customer Support & Campaign Center at 1-888-234-2138 to determine potential eligibility and for instructions on how to request reimbursement.
If you no longer own this vehicle or if any of the information is not correct, please complete and return the enclosed prepaid Information Change Card as soon as possible. If you are a lessor of this vehicle, federal regulations require you to forward this notice to your lessee within ten days.
If you believe that American Honda or the dealer has failed or is unable to remedy the defect in your vehicle, without charge and within a reasonable period of time (60 days from the date you first contact the dealer for a repair appointment), you may submit a complaint to the Administrator, National Highway Traffic Safety Administration (NHTSA), 1200 New Jersey Ave., SE, Washington, DC 20590. Alternatively, you may call the NHTSA toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to https://www.safercar.gov.
We sincerely apologize for any inconvenience this recall may cause, but please be assured that your safety is our first concern.
Sincerely,
American Honda Motor Co., Inc.
IMPORTANT SAFETY RECALL
This notice applies to your vehicle: XXXXXXXXXXXXXXXXX
Please call any authorized Honda dealer and schedule an appointment to have your vehicle’s PCU software program updated for FREE.
If you are not the only driver of this vehicle, please advise all other drivers and passengers of this important information.
Número de campaña de seguridad NHTSA: 20V-798
Número de campaña de Honda: K9E
Número de boletín de servicio: 20-124
DIVISIÓN AUTOMOTRIZ
American Honda Motor Co., Inc.
1919 Torrance Blvd., P.O. Box 2215
Torrance, CA 90509-9870
Febrero del 2021
Estimado FIRSTNAME LASTNAME,
Esta notificación ha sido enviada a usted de acuerdo con el decreto de la oficina de Administración Nacional de Seguridad del Tráfico en las Carreteras (National Highway Traffic Safety Administration o NHTSA por sus siglas en inglés). Honda ha determinado que existe un defecto el cual está relacionado con la seguridad del vehículo en algunos vehículos Accord Hybrid año modelo 2020, CR-V Hybrid año modelo 2020 e Insight año modelo 2020 – 2021. ¿Por qué mi vehículo está bajo esta campaña de seguridad?:
Bajo ciertas circunstancias, el convertidor DC (CC) a DC (CC) puede apagarse, lo cual puede prevenir que la batería de 12 voltios se recargue y active indicaciones de advertencia (mostradas en la imagen a la derecha). Si se continúa conduciendo el vehículo en esta condición, esto podría ocasionar una pérdida de potencia de impulso, aumentando el riesgo de una colisión.
¿Qué hará Honda?: Su concesionario Honda actualizará el programa de la unidad convertidora de energía (PCU) de forma GRATUITA. Honda estima que la reparación tomará aproximadamente 30 minutos para completar. No obstante, su concesionario le puede ofrecer un mejor estimado del tiempo total de esta visita de servicio, ya que pudiera ser necesario que su vehículo esté disponible por un periodo más largo.
¿Qué necesitamos que usted haga?:
•Verifique la información de la campaña de seguridad de su vehículo ingresando en laherramienta Honda Recall Lookup en www.recalls.honda.com e ingresando suNúmero de identificación del vehículo (VIN).
•Si usted tiene preguntas o inquietudes, le recomendamos que:
o
o
o
o
o llame al Centro de Apoyo al Cliente y Campañas de American Honda al 1-888-234-2138 de lunes a viernes, 6:00 a.m. a 5:00 p.m., hora del Pacífico; ocomuníquese con su concesionario de automóviles Honda local; oenvíe un correo electrónico o chat por medio dewww.owners.honda.com/help/customer-relations; ovisite Twitter @HondaCustSvc; ovisite www.recalls.honda.com.Si usted ha pagado por realizar las reparaciones de la campaña de seguridad específica en su vehículo, usted puede ser elegible para el reembolso, por favor comuníquese con el Centro de Apoyo al Cliente y Campañas de American Honda al 1-888-234-2138 para determinar la elegibilidad potencial y para las instrucciones sobre cómo solicitar el reembolso. Si ya no es el propietario de este vehículo o si alguna información no está correcta, por favor complete, firme y devuelva lo más pronto posible la Tarjeta de Cambio de Información anexa, con el porte pagado. Si usted es el arrendador de este vehículo, las regulaciones federales requieren que usted envié una copia de esta notificación a su arrendatario en un lapso de diez días. Si usted cree que American Honda o el concesionario ha fallado o no le es posible reparar el defecto en su vehículo, sin cobro alguno y dentro de un período de tiempo razonable (60 días desde la fecha en que usted contactó por primera vez el concesionario para la cita de la reparación), usted puede enviar una queja a: Administrator, National Highway Traffic Safety Administration (NHTSA), 1200 New Jersey Ave., SE, Washington, DC 20590. Alternativamente, usted también puede comunicarse con el número de llamada sin costo (Toll-free) Vehicle Safety Hotline de NHTSA al 1-888-327-4236 (TTY 1-800-424-9153), o visitar la página https://www.safercar.gov.Sinceramente le pedimos disculpas por cualquier inconveniente que pueda haberle causado esta campaña de seguridad, pero por favor tenga por seguro que su seguridad es nuestra primera preocupación. Atentamente, American Honda Motor Co., Inc.
CAMPAÑA DE SEGURIDAD IMPORTANTE
Esta notificación aplica a su vehículo: XXXXXXXXXXXXXXXXX
Por favor comuníquese con cualquier concesionario Honda autorizado y coordine una cita para la actualización del programa del PCU de su vehículo de forma GRATUITA.
Si usted no es el único conductor de este vehículo, por favor informe a todos los conductores y pasajeros sobre esta información importante.
************** Next Unread Message View Message
DATE: December 18, 2020
TO: All Honda Sales, Service & Parts Managers, and Personnel
FROM: Brad Ortloff, Manager of Auto Campaigns and Recalls
Re: Stop Sale/Safety Recall: 2020-2021 Multi-Model DC-DC Converter
On December 17, 2020, American Honda notified NHTSA of a stop sale and safety recall for certain 2020
Accord Hybrid, 2020 CR-V Hybrid and 2020-2021 Insight vehicles to resolve 12-volt battery charging issues
managed by the DC-DC converter unit, which may cause the vehicle to not start or the engine to stop
while driving, increasing the risk of a crash. Refer to your eResponsibility report or do an iN VIN status inquiry
to determine which units in your inventory are affected.
Failure to repair a vehicle as necessary prior to sale may subject your dealership to claims or lawsuits.
BACKGROUND
The DC-DC converter within the Power Control Unit (PCU) may generate excessive voltage, triggering the
failsafe mode in the power supply control program. In this condition, the DC-DC converter unit is unable
to supply power to the 12V battery, which may result in the illumination of the 12V battery warning light
and a warning message to be displayed. If the vehicle continues to be driven in this condition, driving
assistance may decrease in effectiveness and eventually stop.
REPAIR
Update the PCU soware.
SOFTWARE
The soware is available as of December 17, 2020.
PARTS
There are no parts needed for this recall.
TOOLS
There are no special tools needed for this recall.
SERVICE BULLETIN
Service bulletin 20-124, Safety Recall: Multi-Model Hybrid DC-DC Converter PCU Soware Update, has
been posted to the Service Informaon System (SIS) as of December 18, 2020. It includes soware, repair,
and warranty information related to this campaign.
CUSTOMER NOTIFICATION
American Honda expects to begin customer notification in late February 2021.
Sent on 12 18 2020 Expires on 03 05 2021
From Brad Ortloff, Manager of Auto Campaigns and Recalls
Subject Stop Sale/Safety Recall: 2020-2021 Multi-Model DC-DC Converter
INTERACTIVE NETWORK
American Honda Motor Co., Inc. Page 1 of 2
As always, be sure to do an iN VIN status inquiry for all vehicles passing through your dealership to
determine eligibility for any open campaigns.
INTERACTIVE NETWORK
American Honda Motor Co., Inc. Page 2 of 2
************** Service Bulletin
20-124
December 18, 2020 Version 1
Safety Recall: Multi-Model Hybrid DC-DC Converter PCU Software Update
WARRANTY CLAIM INFORMATION
Operation Number Description Flat Rate Time Defect Code Symptom Code Template ID Failed Part Number
1185B6 Update the PCU software (includes CKP pattern learn). 0.3 hr 6PU00 K9E00 A20124A 1B000-6L2-A21Skill Level: Repair Technician
SEOCONTENT-END
4 Affected Products
Vehicles
9 Associated Documents
Miscellaneous Document – Media Statement
RMISC-20V798-4871.pdf 74.741KB
Defect Notice 573 Report
RCLRPT-20V798-5921.PDF 216.921KB
Manufacturer Notices(to Dealers,etc) – Stop Sale/Safety Recall: 2020-2021 Multi-Model DC-DC Converter
RCMN-20V798-1078.pdf 194.934KB
Recall Quarterly Report #1, 2021-1
RCLQRT-20V798-8181.PDF 211.161KB
Miscellaneous Document – Part 573 Defect Information Report
RMISC-20V798-7476.pdf 357.168KB
Remedy Instructions and TSB
RCRIT-20V798-4148.pdf 75.149KB
Recall Acknowledgement
RCAK-20V798-1007.pdf 244.882KB
ISSUED Owner Notification Letter(Part 577)
RCONL-20V798-9204.pdf 265.505KB
Recall Quarterly Report #2, 2021-2
RCLQRT-20V798-9144.PDF 211.265KB
Latest Recalls Documents
Reprogramming
i-HDS Diagnostic Software and J2534 Reprogramming Software
Honda J2534 Pass-Thru User Guide
Honda J2534 Pass-Thru Software Download
i-HDS Diagnostic Software and J2534 Reprogramming Software
American Honda Motor Co., Inc. ("Honda") offers the i-HDS (Honda Diagnostic System) software suite for the diagnosis and repair of electronic systems on Honda and Acura automobiles, and for the reprogramming of electronic control units (including, but not limited to, ECMs and PCMs). This software provides access to all Honda and Acura vehicle systems (access to the immobilizer security system requires a Security Professional level software subscription and Vehicle Security Professional [VSP] registration with NASTF). To use the i-HDS software, you need to purchase one of our convenient subscription options. In addition, you will need a pass-thru Vehicle Communication Device (VCI) that is compliant with SAE J2534-1 and J2534-2 in order to communicate with the vehicle
Vehicle Communication Interfaces (VCI)
The i-HDS software supports the use of a generic pass-thru VCI that is compliant with SAE J2534-1 and J2534-2. However, Honda recommends the Denso DST-i or the Bosch MVCI for use on Honda and Acura vehicles, as Honda has worked closely with these manufacturers to ensure their hardware and our software interact safely and within the J2534-1 and -2 specifications, for both diagnostics and reprogramming. If you choose to use a generic VCI, please carefully consider the customer and technical support options you will receive from your chosen device supplier. Honda does not provide technical or customer support for generic VCI devices.
The VCI Application Table below lists devices that either are approved and supported by Honda or are known to have completed and passed an independent, exhaustive validation program with our i-HDS software suite.
| VCI Name | Manufacturer | Version Information | Notes | |
|---|---|---|---|---|
| Firmware | J2534 API | |||
| DST-i | DENSO | 2.02.0002* | 04.04 | This is the current generation VCI used by Honda and Acura dealers. Honda routinely validates the functionality and provides customer support for this device. |
| DST-nano | DENSO | 2.02.0002* | 04.04 | This is the current generation VCI used by Honda Canada Inc. Honda and Acura dealers. Honda routinely validates the functionality and provides customer support for this device. |
| MVCI | Bosch | 3.01.60* | 04.04 | This is the previous generation VCI used by Honda and Acura dealers. Honda routinely validates the functionality and provides customer support for this device. |
| MongoosePro Honda | Drew Technologies | 1.9.5** | 04.04 | This company has completed an independent i-HDS validation and claims it to function with the i-HDS software. Honda does not provide ongoing validation, nor customer support for this device. |
| d-briDGe Pro | Dearborn Group | 3.303** | 04.04 | This company has completed an independent i-HDS validation and claims it to function with the i-HDS software. Honda does not provide ongoing validation, nor customer support for this device. |
* These versions may have been superseded. Honda provides the latest supported versions to current i-HDS subscribers.
** Version used in validation program. See Terms and Conditions and Important Notice Regarding Reprogramming below for more details.
Reprogramming with the J2534 Rewrite Application in i-HDS
Included in the i-HDS software suite is a new reprogramming application called J2534 Rewrite. This application is made available to all subscribers of the i-HDS software suite and replaces the previous generation software, J2534 Honda Pass-thru Reprogramming Software.
This new application is compatible with generic VCIs that comply with SAE J2534. It must be used to reprogram any Honda/Acura vehicle equipped with ECUs that support reprogramming. Refer to the table below for legacy applicability for the programming of ECMs and PCMs. Though system dependent, late-model vehicles may be equipped with other ECUs that support reprogramming as well, e.g. ABS or VSA. J2534 Rewrite must be used to reprogram these control modules, as instructed in an applicable service bulletin.
As shown in this table, not all legacy Honda/Acura models are equipped with a reprogrammable ECM/PCM. Furthermore, all 2007 and later models not listed in the table are fully supported with this application.
DST-i Information:
MVCI Information:
- Advanced VCI Box, Industry-leading J2534 Pass-Thru Technology: This J2534 Pass-Thru Programmer is designed espically for technicians, independent shop owners, and DIY enthusiasts, enables fast, reliable computer-based programming. It supports all J2534 protocols—including the latest DoIP and CAN FD—ensuring full compatibility with both legacy and next-generation vehicles.
- High-Speed OEM-Level Diagnostics & Programming: Unlock true OEM functionality with comprehensive system diagnostics, guided troubleshooting, coding, adaptations, resets, and programming—all designed to slash repair time. This all-in-one tool eliminates the need for multiple OEM devices, boosting efficiency and cutting costs. Equipped with High-Speed USB, it delivers 10x more data per second than competing solutions
- Coverage for 17 Car Brands & Ultra Reliability: Works seamlessly for Chrysler, for Ford(Forscan), for GM, for Nissan, for Toyota, for Honda, for Subaru(SSM4), for Land Rover/Jaguar, for Volvo, for Wuling, for Volkswagen, for Mercedes-Benz, and for BMW. Backed by over 10000 real vehicle tests and benefit from a wealth of practical experience, this OEM reprogramming tool guarantees stable and exceptional performance
- User-Friendly RLink Platform & Expert Support: TOPDON’s proprietary driver management platform offers a clean interface and lifetime free updates. Access a rich library of real-world case studies to stay ahead of the curve. Backed by a support team with 10+ years of J2534 and automotive repair experience, we provide one-on-one assistance to resolve any technical issue.
- 6.6 ft USB-C Cable & Portable Storage Case: The RLink J2534 diagnostic tool features a 6.6ft USB 2.0 Cable and a 1.2 ft OBDII Extension Cable, allows to connection your computer easily outside the vehicle. The included handled carry case offers easy portability, storage, and hanging options—keeping your gear clean and ready to go, anywhere.
- Dual WiFi & 10.1" Touchscreen: Provides a stable, high-speed wireless link 3x faster than bluetooth, and a responsive, professional interface. Topdon ONE obd2 scanner diagnostic tool ensures smooth, non-lagging diagnostic scan, boosting mechanic efficiency
- J2534 Pass-Thru Support: The included ONE VCI supports the J2534 standard, allowing it to function as a pass-thru device when paired with OEM diagnostic software.Through TOPDON’s RLink platform, technicians can perform dealer-level coding, expanding in-house capabilities without investing in multiple factory automotive scan tools
- OE Topology Mapping: Visualize the vehicle’s ECU network exactly as it’s built.Zoom, pan, and highlight specific modules to pinpoint component issues with precision.Topology mapping displays real-time communication between modules
- 50 Plus Service Functions: Covers high-demand services like ADAS calibration, DPF regen, TPMS reset, ABS bleed, and throttle adaptation.Expands your service menu, allows you to charge premium rates, and turns away zero jobs due to lack of tooling. Vehicle-specific functionality may vary
- Advaned ECU Coding: 10 of the most serviced brands in North America, including full ECU coding and flash hidden support for BMW, VW, Au-di, Benz, Porsche, Toyota, Ni ssan and more. Enables module replacement, feature customization, and personal settings with automatic backup or restore.Lets your shop safely offer high-margin customization services, attracting more customers and boosting profit
- ALL OF THE J2534 PROTOCOLS - This single unit has all of the protocols you need for your OEM J2534 reprogramming and diagnostics including the latest in DoIP and CanFD
- J2534 TECHNICAL SUPPORT - FREE for the life of the tool. Staffed by technicians who understand vehicle repair and J2534 Pass‑thru
- TOOLBOX WITH OEM APPLICATION DESCRIPTIONS - educational video tutorials and real-time news – Giving you the confidence and up-to-date knowledge to get the job done
- J2534 v05.00 API - The newest version of J2534 to give you the latest in pass-thru technology
- FUTURE PROOF WITH 4 CAN CHANNELS - Going beyond the 3 required by select Chrysler/FCA models, CarDAQ-Plus 3 also provides a 4th to meet the needs of future OEM applications
- 💯【Conta.ct us for Support Directly】For any issues experienced after purchase, please reach out to: 📞autelsupply@ outlook. com🛣️. Our team will provide perfect solution for you. For tech support or [explore additional accessory], please cont.act our team: 📞autelsupply@ outlook. com🛣️.
- 🌎【Autel J2534 Pass-Thru Progra.mmer】As an OEM Pass-Thru Progra.mmer Vehicle interface for multiple makes, Autel MaxiFlash J2534 support all J2534 protocols, D-PDU, CAN-FD and DoIP protocols. 2026 newer Autel MaxiFlash J2534 VCI can works with P-C and download OEM vehicle software, seamlessly conduct OE-level diagnostic-progra.mming-c0ding. Also, Work with Elite II Pro/ Ultra Lite/ MS909/ MS909CV/ MS909EV to directly pro.gram on Merce.des-Be.nz & BM.W. Autel J2534 Progr.ammer is a multi-functional device and supports 10+ major brands, including for Hond.a, G.M, LandRo.ver, BM.W, Chrysl.er, For.d, Hyun.dai, Ki.a, Merc.edes B.enz, Toyot.a, Volksw.agen etc.
- 🌎【Enhanced Protocol: J2534/D-PDU/RP1210/CAN FD/DoIP】Autel MaxiFlash JVCI is a blueto.oth communicate device, it supports latest CAN FD DoIP CAN protocols, compliant with automotive D-PDU/ J2534/ RP1210 standards. It can perform standard PassThru J2534 functions: compatible with Toyota Techstream, Volvo VIDA, Honda HDS, Jaguar Land Rover IDS and BM.W 3G for OEM diagnostics. CAN FD protocol is mainly for GM 2019+, DoIP protocol is mainly for Volvo 2018+, for L-and Rover/for Jaguar 2017+, for BM.W F chassis and G chassis.
- 🌎【Compatible with P-C/ WIND.OWS 】The Autel J2534 VCI can be connected to a compu.ter via a data cable; once the corresponding OEM software is installed, it enables do advanced progr.amming and c0ding on your vehicles. Easy Steps: 1) Connect to P-C via a USB cable 2) download OEM vehicle software 3) Start Diagnose. Take For.d for example, you can download OEM software on mot.orcraft.erservi.ce website, such as: For.d Diagnostic Software downloads, As B.uilt Data, Updated Cali.bration information, then use different software do relevant features.
- 🌎【Work with Autel Elite II Pro/ Ultra Lite/ MS909/ MS909CV/ MS909EV】This 2026 latest Autel J2534 Pass-Thru VCI is 100% compatible with Autel Elite II Pro Ultra Lite MS909 MS909CV MS909EV to perform advanced functions from diagnose to progra.mming.
- [2026 X431 PRO3 V+ Elite] A great value for the X431 series that differs from similar diagnostic tools by adding: 1) J2534 protocol for over $800 in savings; 2) CANFD/DOIP support for enhanced communications; 3) Configuration of over $900 worth of HD(heavy truck) modules, needed purchase HD diagnostic software by HD vehicle model for use.; 4) A 10.1 inch Gorilla screen with 1280*800 resolution and 80% more touch screen sensitivity
- [J2534 Protocol Scan Tool] The J2534 Direct Access Device can be used as a factory scanning tool at no cost to you, saving you over $2,000. You can easily expand your ECU protocol capabilities for Toyota, Honda, VW, BMW, Ford, GM, Chrysler, Mercedes-Benz and more. The LAUNCH X431 PRO3 V+ ELITE Scan Tool is equipped with the newly upgraded smartlinkC V2.0. smartLinkC is a communication interface that supports the J2534 specification. It can also be used as a J2534 PassThru device to implement the J2534 protocol with a PC that has OEM diagnostic software installed.The J2534 protocol is the only way to solve problems ranging from drivability and power loss to poor fuel economy
- [Top Hardware Configuration, Upgraded Version of V+] LAUNCH Diagnostic Scanner adopts Android 10.0 OS; CPU is 4-core processor with 2.0 GHz, which greatly improves the speed of running multi-tasks. 2.4GHz/5GHz; 6300mAh/7.6V ultra-large capacity battery; 10.1 inch Gorilla screen, sunlight readable, 8MP camera; Auto VIN; 4GB+64GB storage; 20x transfer rate to save more vehicle files and customer data; New TYPE A interface to connect expansion tools such as oscilloscopes, sensors, etc.; Supports more than 25 software languages such as EN, DE, FR, SP and JP
- [60+ Reset 3000+ Active Test] Full Bi-Directional Scan Tool quickly detects problems and guides repairs based on the response of actuators such as air conditioning clutches, windows, doors, mirrors and more. With the touch of a finger, you can easily send command signals from the scanner to a variety of modular actuators, testing component integrity and functionality in minutes or even seconds to determine if a replacement or repair is needed. In addition, the machine enjoys 60+ special services such as oil reset, ABS brake bleed, EPB, SAS, BMS, suspension, injector reset and more, and undergoes rigorous field testing to ensure availability
- [Unrivaled Coverage, Over 200 Vehicle Brands] LAUNCH X431 PRO3 V+ Elite Automotive Scanner is suitable for over 200 vehicle brands, including commercial vehicles and new energy vehicles. This professional car scanner supports: 1) J2534/D-PDU protocol for HD trucks; DoIP/CANFD for Land Rover/Jaguar, BMW F/G chassis, GM, etc.; 2) FCA Autoauth, covering 2018+ Chrysler/Dodge/Fiat, etc. New/old models, all covered. Includes frequently updated vehicle software and car coverage for faster support of other new models
- Industry-leading J2534 Pass-Thru Technology: Enabling diagnostics, reprogramming and security functions for dealerships and the independent repair facility. Economical and compact pass-thru devices provides an easy-to-use interface that allows you to repair complex vehicles with OE applications in your shop. Each type (see single branded types above) Mongoose-Plus is engineered to work with one of the following OEM's J2534 applications for Chrysler, Ford, GM, Nissan, Toyota, Subaru, & VW/Audi.
- Supports Current GM Vehicles: Now includes CAN-FD, DoIP (Diagnostics over Internet Protocol - as defined in J2534-2) and support for J2534 version 5.0. This is the tool that GM dealerships use for diagnostics and reprogramming.
- NEW Bluetooth Wireless Options Available: Providing wireless connectivity between your laptop and the Mongoose-Plus
- Expert Product Support: Staffed by technicians who understand vehicle repair and J2534 Pass‑Thru applications to help you with any technical setup questions
- Key Registration and Immobilizer Support: Using NASTF Vehicle Security Professional credentials
Last update on 2026-06-11 / Affiliate links / Images from Amazon Product Advertising API
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