January 25, 2018
A loss of power can increase the risk of a crash.
NHTSA Campaign Number: 18V068
Manufacturer Honda
(American Honda Motor Co.)
Components ELECTRICAL SYSTEM, HYBRID PROPULSION SYSTEM
Potential Number of Units Affected 471
Summary
Honda (American Honda Motor Co.) is recalling certain 2017 Clarity Fuel Cell vehicles. The fuel cell control unit (FC-ECU) may misinterpret a small cell voltage drop, causing the vehicle to have reduced, or a complete loss of, power.
Remedy
Honda will notify owners, and dealers will install a software update, free of charge. The recall began February 28, 2018. Owners may contact Honda customer service at 1-888-234-2138. Honda’s number for this recall is R0L.
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
Service Bulletin
January 26, 2018
Version 1
Safety Recall: Fuel Cell Stack – Power System Problem Message is Displayed
AFFECTED VEHICLES
| Year | Model | Trim | VIN Range |
| 2017 | Clarity Fuel Cell | ALL | Check the iN VIN status for eligibility |
BACKGROUND
The fuel cell stack generates electricity to power the vehicle through a process that combines hydrogen from the fuel tanks and the oxygen from the air. The stack is made up of many individual cells that act like batteries. Each of these cells is monitored individually by the vehicle so if there is a problem with the fuel cell, a warning message appears on the dash before the fuel cell shuts off. Because of a software issue, the monitoring system may shut down the fuel stack at the same time the message appears, resulting in an unexpected loss of motive power, which reduces vehicle control and increases the risk of a crash.
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. To see if a vehicle in inventory is affected by this safety recall, do a VIN status inquiry before leasing it.
CORRECTIVE ACTION
Update the FC (fuel cell) system with the i-HDS.
WARRANTY CLAIM INFORMATION
| Operation Number | Description | Flat Rate Time | Defect Code | Symptom Code | Template ID | Failed Part Number |
| 3105H7 | Update the FC system with the i-HDS. | 0.2 hr | 6CL00 | R0L00 | A18016A | 3K201-5WM-A22 |
Skill Level: Repair Technician
SOFTWARE INFORMATION
NOTE
Unnecessary or incorrect repairs resulting from a failure to update the i-HDS or MVCI are not covered under warranty. i-HDS Software Version: 1.004.005 or later
J2534 Software Information:
- PC Application Version: 1.1.0.2 or later
- Database update: 28-DEC-2017 or later
Before beginning the repair, make sure that both the i-HDS and J2534 software are updated as listed above. Do only the update listed in this service bulletin.
You cannot apply the updates with the MVCI as a standalone tool. To update the vehicle, you must use the MVCI or DST-i interface in conjunction with the J2534 Rewrite PC application on the i-HDS.
For more information about updating the iHDS, MVCI, or DST-i and vehicle systems, refer to Service Bulletin01-023, Updating tControl Units/Modules.
| Trim | Software System | Program ID (or later) | Program P/N (or later) |
| 2017 Clarity Fuel Cell | FC | WMA220 | 3K201-5WM-A22 |
REPAIR PROCEDURE
NOTE
- You cannot update the vehicle using the MVCI as a standalone tool.
- Do not use the MongoosePro VCI tool.
- Connect a fully charged 12-volt jumper battery to the vehicle, and leave it connected during the entire procedure to maintain steady voltage.
- Never turn the ignition to OFF or ACCESSORY during the update. If there is a problem with the update, leave the ignition turned to ON.
- To prevent control unit damage, do not operate anything electrical (headlights, audio system, brakes, A/C, power windows, door locks, etc.) during the update.
- If you see the following Error Display, check that you are using the correct tool (MVCI or DST-i) with the i-HDS.
To change this, click on either of the SETTING selection buttons at the bottom of the J2534 initial screen as shown.
- Make sure the 12-volt battery is fully charged. Check the condition of the 12-volt battery using the GR8 battery diagnostic station. If necessary, replace the battery before updating the FC software. Refer to Service Bulletin 88-023, Battery Testing and Replacement.
- Connect a fully charged jumper battery to the vehicle, and leave it connected during the update to maintain steady voltage.
- Make sure the parking brake is applied and the headlights are turned off. Turn the power mode to ON by pressing the start button twice.
NOTES
- Do not press the brake pedal while pressing the start button.
- The MID should not display “Ready to Drive.”
- Update the FC software by selecting the i-HDS Diagnostic System Refer to Service Bulletin 01-023, Updating Control Units/Modules
NOTE
Do not use the Rewrite icon on your desktop.
- Select J2534 Rewrite.
- Confirm the software is the same or later as listed in SOFTWARE INFORMATION.
- Select Start, then follow the screen prompts.
NOTE:
- Do not enter a bulletin number.
- If you receive a message that the vehicle has been already updated or that no update is available, check the FC Data List. The header should indicate one of the following numbers (or later).
3K201-5WM-A22
- The program ID’s are displayed when you click this icon.
- If the program part numbers do not match those listed above, the i-HDS software needs to be reinstalled. Contact the Special Tools Hotline at 800-346-6327 for assistance
- Remove the 12-volt jumper battery.
END
1 Affected Product
Vehicle
| MAKE | MODEL | YEAR |
| HONDA | CLARITY FUEL CELL | 2017 |
14 Associated Documents
Recall 573 Report-Amendment 2
RCLRPT-18V068-1600.PDF 215.182KB
ISSUED Owner Notification Letter(Part 577)
RCONL-18V068-9604.pdf 130.025KB
AMENDED DEFECT INFORMATION REPORT
RMISC-18V068-3519.pdf 47.234KB
Statement by American Honda Regarding Fuel Cell ECU Software Recall: 2017 Honda Clarity
RMISC-18V068-5364.pdf 73.234KB
Recall Acknowledgement
RCAK-18V068-5555.pdf 247.427KB
DEFECT INFORMATION REPORT
RMISC-18V068-4990.pdf 77.608KB
Manufacturer Notices(to Dealers,etc) – DATE: January 26, 2018 Re: Safety Recall: 2017 Fuel Cell Stack – Power System Problem Message is Displayed
Defect Notice 573 Report
RCLRPT-18V068-2502.pdf 215.077KB
Recall 573 Report-Amendment 1
RCLRPT-18V068-2582.PDF 215.172KB
Remedy Instructions and TSB – Service Bulletin 18-016 January 26, 2018 Version 1
RCRIT-18V068-6879.pdf 7055.84KB
Recall Quarterly Report #1, 2018-1
RCLQRT-18V068-0770.PDF 214.508KB
Recall Quarterly Report #3, 2018-3
RCLQRT-18V068-1736.PDF 211.314KB
Recall Quarterly Report #4, 2018-4
RCLQRT-18V068-0646.PDF 211.422KB
Remedy Instructions and TSB
RCRIT-18V068-8101.pdf 144.532KB
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 aย Security Professionalย 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 byย Honda Canada Inc.ย 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 theย J2534 Rewriteย 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,ย 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.ย J2534 Rewriteย 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 protocolsโincluding the latest DoIP and CAN FDโensuring full compatibility with both legacy and next-generation vehicles.
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- 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 optionsโkeeping your gear clean and ready to go, anywhere.
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- [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
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