Service Bulletin
May 23, 2023

23-045
Version 1

Accord CAN Gateway Errors DTC B2B05-92 and Code K201
AFFECTED VEHICLES
Year

Model

Trim Level

VIN Range

2023

Accord

ALL

ALL

SYMPTOM
Some customers experience the following errors: DTC B2B05-92 and Code K201. These errors will prevent System
Updates from functioning.
In all trims, the message “System update is not available. See your dealer” may appear in the gauge. When i-HDS is used
to perform an All DTC Scan, the DTC B2B05-92 will be returned.

In Hybrid trims, the audio unit may also display Code K201.

POSSIBLE CAUSE
A software issue in the Telematics unit causing the error to occur. Under certain conditions, if the Power Mode is set to Off
while a software update is preparing for installation, the DTC and Code can appear.

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.

© 2023 American Honda Motor Co., Inc. – All Rights Reserved

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CORRECTIVE ACTION
Restart the OTA System, then update the Telematics unit to the latest software version. If the software is up to date, and
the DTC returns, follow the trouble shooting steps for DTC B2B05-92.
WARRANTY CLAIM INFORMATION
The normal warranty applies.
Operation
Number

Description

Flat Rate
Time

Defect
Code

Symptom
Code

Template
ID

Failed Part Number

0545A2

Restart the OTA
System (includes DTC
check and clear)

0.2 hr

03214

03217

A23045A

8B100-30A-A71

C

Update the Telematics
unit.

0.2 hr

Skill Level: Repair Technician
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

1.008.008 or later

HDS Software Version

3.105.009 or later

Honda ECU Reprogramming

3.4.0.0 or later

For more information about updating vehicle systems, refer to service bulletin 22-100, Updating Control Units/Modules with
the ECU Reprogramming Application.
Update only the systems and software listed in this service bulletin.
Do not use the MongoosePRO VCI for this service bulletin as it is not an American Honda-approved device.
Year/Model

Vehicle System

Program ID (or later)

2023 Accord ALL

TCU

8B010-30A-A030

REPAIR PROCEDURE
NOTE:
• Restart the OTA System, then update the Telematics Unit to the latest software version.
•

If the software is up to date and the code reappears, follow the troubleshooting steps for DTC B2B05-92.

1. Use iHDS to connect to the vehicle.
2. Do an All DTC Scan.
3. Do an All DTC Clear.

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4. Restart the OTA System.
NOTE: The pathway should be as follows: System Selection Menu > CAN Gateway > Adjustment > Restart the
OTA System

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5. Use the ECU Reprogramming to perform a software update on the TCU.
NOTE:
• For more information about updating vehicle systems, refer to service bulletin 22-100, Updating Control
Units/Modules with the ECU Reprogramming Application.
•

If the software is up to date and the code reappears, follow the troubleshooting steps for DTC B2B05-92.

END

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