A15-055

Service Bulletin
15-055
May 28, 2021
Version 4
Product Update: Electric Power Steering (EPS) Software Update
Supersedes 15-055, dated September 28, 2018; See Revision Summary
AFFECTED VEHICLES
Year
Model
Trim Level
VIN Range
2013-14
Accord
ALL
Check the iN VIN status for eligibility.
2014
Accord Plug-In Hybrid
ALL
Check the iN VIN status for eligibility.
2014
Accord Hybrid
ALL
Check the iN VIN status for eligibility.
REVISION SUMMARY
The Mongoose Pro Interface tool had been superseded to the Mongoose Plus 2 Interface Tool; both units support this
product update. Tool and software information, as well as updated images reflecting the new software have been added.
American Honda recommends you read this entire bulletin.
BACKGROUND
When a failure is detected, the EPS control unit goes into back-up mode. The new software provides partial assist during
back-up mode.
CUSTOMER NOTIFICATION
Owners of affected vehicles have been 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 used vehicle inventory. Repair these vehicles before they are
sold.
CORRECTIVE ACTION
Use the i-HDS and the Mongoose Pro / Plus Honda Interface Tool to update the EPS software.
TOOL INFORMATION
Tool Name
Part Number
Quantity
Mongoose Pro Honda Interface Tool
DRWMGPHON
1
Mongoose Plus-Honda 2 Interface Tool
DRWMGPHONA
1
NOTE: The Mongoose Pro Honda Interface Tool is no longer available to order, but still supports this product update.
Order the Mongoose Plus-Honda 2 Interface Tool if you do not have either.
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 7
SOFTWARE INFORMATION
NOTE: Unnecessary or incorrect repairs resulting from a failure to update the i-HDS are not covered under warranty.
i-HDS Software Version:
J2534 EPS Update: 5.05
NOTE: Supported driver software is automatically deployed within the i-HDS software suite. There is no need to download
the driver from "Opus - Drew Technologies."
EPS Rewrite application – Supported Interface Tools
Interface Tool Name
Installer version
Driver version
Mongoose Firmware
Drew Technologies
Mongoose Pro Honda
1.0.14.0
1.7.7.0
1.4.14.0
Drew Technologies
Mongoose-Plus Honda 2
1.0.14.0
1.0.11.0
0.1.8.0
Year/Model
Program ID
Program Part number
CM Part Number
2013-14 Accord 4-Door LX
L4
39990-T2F-A020
39990-T2F-3050
39980-T2F-A014
2013-14 Accord Sport
39990-T2F-A810
39990-T2F-3070
39980-T2F-A814
2013-14 Accord 4-Door EX,
EX-L, L4
39990-T2F-A920
39990-T2F-3060
39980-T2F-A914
2013-14 Accord 4-Door EX,
EX-L, Touring, V6
39990-T2G-A910
39990-T2G-3050
39980-T2G-A914
2013-14 Accord 2-Door EX- 39990-T3L-A010
L, L4
39990-T3L-3050
39980-T3L-A014
2013-14 Accord 2-Door EX- 39990-T3M-A910
L, V6
39990-T3M-3050
39980-T3M-A914
2014 Accord Plug-In
39990-T3V-A030
39990-T3V-3050
39980-T3V-A013
2014 Accord Hybrid
39990-T3Z-A020
39990-T3Z-3050
39980-T3Z-3050
WARRANTY CLAIM INFORMATION
Operation
Number
Description
Flat Rate
Time
Defect
Code
Symptom
Code
Template
ID
Failed Part Number
5135A7
Update the EPS
control unit software.
0.3 hr
5ZS00
JT500
15-055A
39980-T2F-A91
Skill Level: Repair Technician
Page 2 of 7
BEFORE GETTING STARTED
NOTE:
• Connect a fully charged 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. If there is a problem with the update, leave the ignition turned to ON.
• To prevent EPS control unit damage, do not operate anything electrical (headlights, audio system, brakes, A/C,
power windows, door locks, etc.) during the update.
DIAGNOSIS
Connect the i-HDS and check for DTCs in the EPS system.
• If DTC 53-01 torque sensor (low/high check) or DTC 53-02 torque sensor (average check) is stored, complete this
bulletin and refer to SB 15-056, Warranty Extension: EPS Torque Sensor (DTC 53-01 or DTC 53-02) to replace the
steering gear box.
• If DTC 53-01 or DTC 53-02 is not stored, go to REPAIR PROCEDURE.
REPAIR PROCEDURE
Updating the EPS with the Mongoose Pro / Plus Honda Interface Tool.
NOTE:
• Make sure you have the latest software loaded to your PC. Run the Honda Download Manager to confirm the latest
software.
• During the software update, DO NOT turn off the ignition to OFF. Doing so during the update will damage the control
unit.
1. Connect a jumper battery to the vehicle and leave it connected during the entire procedure to maintain a steady
voltage.
2. Connect the Mongoose Pro / Plus Honda Interface Tool between the PC and the vehicle's DLC.
3. Select the EPS Rewrite Icon on your PC.
Page 3 of 7
4. Select I Agree.
5. Select Next in the Pass-thru Device Selection screen.
NOTE: If you are using the Mongoose Plus Interface Tool, be sure to select "Drew Technologies, Inc. MongoosePro
Honda2" or the interface tool will not connect.
Page 4 of 7
6. Select Start.
7. Select Connect.
Page 5 of 7
8. You will see the Communication with the Vehicle screen.
9. Wait for the EPS Update Information screen to appear. Select Yes. The update will start and the screen will show a
loading bar.
Page 6 of 7
10. Turn the ignition to OFF, then to ON within 60 seconds to complete the updating procedure
11. The EPS Update Successful screen appears. Select Complete, then disconnect the Mongoose Pro / Plus Honda
Interface Tool.
END
Page 7 of 7