A21-037
Service Bulletin Details
Public Details for: A21-037
Service bulletin - the current battery control module (bcm) ecu software does not properly detect a deteriorated high voltage battery condition and does properly illuminate the mil.
- 2014 -
Models from 2014
2014 HONDA ACCORD PLUG-IN HYBRID |
Service Bulletin 21-037 March 26, 2021 Version 1 Emissions Recall: 2014 Accord Plug-In Hybrid (PHEV) Battery Software Update AFFECTED VEHICLES Year Model Trim Level VIN Range 2014 Accord Plug-In Hybrid (PHEV) ALL Check the iN VIN status for eligibility. BACKGROUND The current Battery Control Module (BCM) ECU software does not properly detect a deteriorated high voltage battery condition and does properly illuminate the MIL. 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. Repair these vehicles before they are sold. CORRECTIVE ACTION Update the high-voltage battery BCM software. WARRANTY CLAIM INFORMATION Software Update Only (Use this template if the DTC returns after the test-drive) Operation Number Description Flat Rate Time Defect Code Symptom Code Template ID Failed Part Number 1185B7 Update the highvoltage battery BCM software. 0.2 hr. 6BE00 UA500 A21037A 1D100-5K0-A00 Software Update, Charge High-Voltage Battery Pack and Test-Drive (Use this template if the DTC does not return) Operation Number Description Flat Rate Time 1185B7 Update the highvoltage battery BCM software. 0.2 hr. Charge battery pack and test-drive - Add 0.5 hr. A Defect Code Symptom Code Template ID Failed Part Number 6BE00 UA500 A21037B 1D100-5K0-A00 Skill Level: Repair Technician CUSTOMER INFORMATION: The information in this bulletin is intended for use only by skilled technicians who have the proper tools, equipment, and training to correctly and safely maintain your vehicle. These procedures should not be attempted by “do-it-yourselfers,” and you should not assume this bulletin applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Honda automobile dealer. © 2021 American Honda Motor Co., Inc. – All Rights Reserved Page 1 of 9 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 1.006.026 or later HDS Software Version 3.104.014 or later J2534 Rewrite Software Information PC Application Version 1.2.1.1 Database Update 12-MAR-2021 or later NoticeDB Version 12-MAR-2021 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 2014 Accord Plug-In Hybrid BCM Program ID (or later) 1K101-5K0-A150 REPAIR PROCEDURE NOTE: • • • • • • • 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. Page 2 of 9 1. Update the BCM software using the J2534 Rewrite software with the DST-i. Refer to service bulletin 01-023, Updating Control Units/Modules. 2. Select Start to continue. Entering a service bulletin number is not required. 3. Select Start. Page 3 of 9 4. Select Next. 5. Follow the prompts on the screen. Page 4 of 9 6. Enter the VIN, RO# and miles. 7. Select EV/HEV/IMA Battery. Page 5 of 9 8. Select ENTER. 9. Select ENTER. Page 6 of 9 10. Programming will begin. 11. Once programming is complete, turn the ignition switch to OFF. Page 7 of 9 12. Then turn the ignition switch to ON when instructed. 13. Exit once the update is complete. 14. Fully charge the IMA battery, then test-drive the vehicle. 15. Connect the HDS, and do an all-DTC check. Is DTC P0A7F present? Yes - Replace the IMA Battery. Refer to service bulletin 21-038, Warranty Extension: 2014 Accord Plug-In Hybrid (PHEV) High Voltage Battery Pack Deterioration. No – Repair is complete. Page 8 of 9 16. California residents only: Fill out a Vehicle Emissions Recall – Proof of Correction certificate, and use UA5 as the recall number. Have the service advisor give the certificate to your customer, and advise him or her to keep it as proof that the recall was completed. Your customer will need to submit this certificate to the DMV only if the DMV requests it. If you need more certificates, use reorder number Y0657. END Page 9 of 9