A21-078

Service Bulletin
21-078
October 26, 2021
Version 2
MIL Comes On With DTC P061B
Supersedes 21-078, dates September 07,2021, to revise the information highlighted in yellow.
AFFECTED VEHICLES
Year
Model
Trim
VIN Range
2018–22
Accord 2.0L
Sport, EX-L, Touring
ALL
REVISION SUMMARY
•
Under AFFECTED VEHICLES, the Model Year information was updated.
•
Under SOFTWARE INFORMATION, the versions information was updated.
SYMPTOM
The MIL comes on with DTC P061B (PCM Internal Malfunction) is stored.
POSSIBLE CAUSE
During cold engine startup in high altitudes, the boost pressure and engine speed can increase rapidly setting DTC
P061B.
CORRECTIVE ACTION
Update the PGM-FI software.
WARRANTY CLAIM INFORMATION
The normal warranty applies.
Operation
Number
Description
Flat Rate
Time
Defect
Code
Symptom
Code
Template
ID
Failed Part Number
1255B3
Update the PGM-FI
Software
0.2 hr
03214
03217
A21078A
37805-6B2-A59
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
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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
1.006.042 or later
HDS Software Version
3.104.047 or later
J2534 Rewrite Software Information
PC Application Version
1.2.1.1
Database Update
08-OCT-2021 or later
NoticeDB Version
08-OCT-2021 or later
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.
For more information about updating vehicle systems, refer to service bulletin 01-026, Updating Control Units/Modules.
Year/Model
Vehicle System
Program ID (or later)
2018-19 Accord Sport (MT)
PGM-FI
37805-6B2-A080
2018-19 Accord EX-L, Sport 2.0L (AT)
PGM-FI
37805-6B2-A590
2018-19 Accord Touring 2.0L (AT)
PGM-FI
37805-6B2-A690
2020 Accord Sport 2.0L (MT)
PGM-FI
37805-6B2-A230
2020 Accord EX-L, Sport (AT)
PGM-FI
37805-6B2-A750
2020 Accord Touring (AT)
PGM-FI
37805-6B2-A850
2021-22 Accord Sport (AT)
PGM-FI
37805-6B2-A960
2021-22 Accord Touring (AT)
PGM-FI
37805-6B2-C650
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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.
•
Update the PGM-FI software using the J2534 Rewrite software with the DST-i. Refer to service bulletin 01-026,
Updating Control Units/Modules.
END
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