2016-2018 Honda Warranty Extension: MIL Comes On with DTC P0420/P0430, P030x, and/or P219A/B (With Software Update)

NHTSA ID Number: 10187006

Manufacturer Communication Number: A20-100

 

Summary

“Service Bulletin – The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter. Additionally, debris from the high pressure pump or the fuel injector machining process can cause internal wear or clogging inside one or more injectors. One or more of the following DTCs may be stored:

– P0420 (rear bank catalyst system efficiency below threshold [bank 1])

– P0430 (front bank catalyst system efficiency below threshold [bank 2])

– P0300-P0306 (misfire)

– P219A (air-fuel ratio variation of cylinder [bank 1, rear bank])

– P219B (air-fuel ratio variation of cylinder [bank 2, front bank])

American Honda is extending the warranty on these repairs to 10 years from the original date of purchase or 150,000 miles, whichever comes first.”

 

4 Affected Products

Vehicles

MAKE	MODEL	YEAR
HONDA	ODYSSEY	2018
HONDA	PILOT	2016-2017
HONDA	RIDGELINE	2017

 

 

 

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BACKGROUND

The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter. Additionally, debris from the high pressure pump or the fuel injector machining process can cause internal wear or clogging inside one or more injectors.

One or more of the following DTCs may be stored:

• P0420 (rear bank catalyst system efficiency below threshold [bank 1])
• P0430 (front bank catalyst system efficiency below threshold [bank 2])
• P0300-P0306 (misfire)
• P219A (air-fuel ratio variation of cylinder [bank 1, rear bank])
• P219B (air-fuel ratio variation of cylinder [bank 2, front bank])

American Honda is extending the warranty on these repairs to 10 years from the original date of purchase or 150,000
miles, whichever comes first.

 

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.

 

CORRECTIVE ACTION

Do the following repairs depending on the stored DTC:

P0420 or P0430 only – Update the software, and do the cylinder AF test. If the test fails, replace the fuel injectors.

NOTE:

• If the vehicle has a 9-speed A/T, make sure the A/T software is up to date. The A/T software may have been
  
  updated in service bulletin 19-072, MIL Comes On with DTC P0430 or P0430 with P030X, P219A, P219B (With
  
  Software Update).
• If the vehicle has a 6- or 10-speed A/T, you do not need to check the A/T software.

P0420 or P0430, and any combination of P0300 through P0306, P219A, or P219B – Update the software, and replace the fuel injectors.

NOTE:

• If the vehicle has a 9-speed A/T, make sure the A/T software is up to date. The A/T software may have been
  
  updated in service bulletin 19-072, MIL Comes On with DTC P0430 or P0430 with P030X, P219A, P219B (With
  
  Software Update).
• If the vehicle has a 6- or 10-speed A/T, you do not need to check the A/T software.

P0300 through P0306, P219A, or P219B only – Replace the fuel injectors.

NOTE: The vehicle must have 5,000 miles or more on the odometer.

 

PARTS INFORMATION

*Includes new fuel injectors and all must-replace parts.

 

SOFTWARE INFORMATION

NOTE: Unnecessary or incorrect repairs resulting from a failure to update the i-HDS are not covered under warranty.

Before beginning the repair, make sure all diagnostic and reprogramming software are updated as listed.

Do only the update listed in this service bulletin.

You cannot apply the updates with the MVCI as a standalone tool. To update the software you must use the MVCI or the DST-i interface in conjunction with the J2534 Rewrite PC application on the i-HDS.

For more information about updating the i-HDS, the MVCI, and vehicle systems, refer to service bulletin 01-023, Updating Control Units/Modules.

*Confirm the 9-speed A/T software is up to date.

 

*Confirm the 9-speed A/T software is up to date.

 

INSPECTION

1. Connect the HDS, and do an all-DTC check.

Are any of the DTCs listed below present?

• P0420
• P0430
• P0300-P0306
• P219A
• P219B

Yes – Do the following depending on the DTC(s) present:

– P0420 or P0430 only – Go to the next step to start the PGM-FI software update.

– P0420 or P0430, and any combination of P0300 through P0306, P219A, or P219B – Go to the next step to start
the PGM-FI software update.

– P0300 through P0306, P219A, or P219B only – Go to REPAIR PROCEDURE.

No – This service bulletin does not apply. Continue with normal system troubleshooting.

 

2. Update the PGM-FI software using the i-HDS J2534 rewrite software with the MVCI or DST-i. Refer to Service Bulletin 01-023, Updating Control Units/Modules.

NOTE:

• If the vehicle has a 9-speed A/T, make sure the A/T software is up to date. The A/T software may have been
  
  updated in service bulletin 19-072, MIL Comes On with DTC P0430 or P0430 with P030X, P219A, P219B (With
  
  Software Update).
• If the vehicle has a 6- or 10-speed A/T, you do not need to check the A/T software.

Are DTCs P0300 through P0306, P219A, or P219B present?

Yes – Go to REPAIR PROCEDURE.

No – Go to the next step to start the cylinder AF test.

 

3. Select Honda Systems.

 

4. Select PGM FI.

 

5. Select PGM FI.

 

6. Select Inspection.

 

7. Select Cylinder AF Test.

 

8. Make sure all cylinders pass.

Did all cylinders pass?

Yes – The repair is complete.

No – Go to REPAIR PROCEDURE.

 

REPAIR PROCEDURE

1. Relieve the fuel pressure.

 

2. Disconnect the negative terminal from the 12-volt battery.

 

3. Remove the intake manifold and intake manifold base.

 

4. Remove the high pressure fuel pump cover.

 

5. Remove the fuel rail cover.

 

6. Remove the fuel joint pipe.

 

7. Remove the fuel rail and fuel injectors.

 

8. Replace the fuel injectors in the fuel rail.

 

9. Install the fuel rail and new fuel injectors into the cylinder head.

 

10. Lubricate the tips of the new fuel joint pipe with polyethylene glycol included in the fuel injector kit.

 

11. Lubricate the threaded areas of the fuel rails and high pressure fuel pump with polyethylene glycol.

 

12. Loosen the fuel pump mounting bolts.

 

13. Install the new fuel joint pipe.

NOTE: Do not reuse the fuel joint pipe. Failure to install a new fuel joint pipe will cause fuel leaks.

 

14. Tighten the fuel joint pipe nuts by hand until the tips of the fuel joint pipe are seated on the fuel rails and the high
pressure fuel pump.

 

15. Loosely install the bracket bolts to secure the new fuel joint pipe to the cylinder head.

 

16. Tighten the fuel pump mounting bolts to 25 N·m (18 lb-ft).

 

17. Tighten the fuel joint pipe bracket bolts to 12 N·m (9 lb-ft) and 22 N·m (16 lb-ft) in the order shown.

 

18. Tighten the fuel joint pipe nuts to 36 N·m (27 lb-ft) in the order shown.

NOTE:

• A crowfoot-type special tool increases the torque applied by the torque wrench. Refer to Torque Specifications on
  
  SIS for details on how to recalculate the torque wrench setting.
• Failure to tighten the fuel joint pipe nuts to the proper torque will cause a fuel leak.

 

19. Connect the quick-connect fitting and install the quick-connect fitting cover.

 

20. Connect the negative terminal to the 12-volt battery.

 

21. Check for fuel leaks.

 

22. Install the fuel rail cover.

 

23. Install the high pressure fuel pump cover.

 

24. Install the intake manifold base and intake manifold.

 

25. Do an all-DTC check, and clear any DTCs from all systems.

 

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NHTSA ID Number: 10187003

Manufacturer Communication Number: A18-025

 

Summary

Service Bulletin – MIL Comes On with DTC P0300-P0306 or P219A/B

 

1 Associated Document

Manufacturer Communications

A18-025
February 11, 2021
Version 6

https://www.nhtsa.gov/recalls?nhtsaId=10187003

MC-10187003-0001.pdf 75.918KB

 

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NHTSA ID Number: 10187004

Manufacturer Communication Number: A19-072

 

Summary

Service Bulletin – MIL Comes On with DTC P0430 or P0430 with P030X, P219A, P219B (With Software Update)

 

1 Associated Document

Manufacturer Communications

A19-072
February 11, 2021
Version 4

https://www.nhtsa.gov/recalls?nhtsaId=10187004

MC-10187004-0001.pdf 76.727KB

 

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1 Associated Document

Manufacturer Communications

A20-100
February 11, 2021
Version 2

https://www.nhtsa.gov/recalls?nhtsaId=10187006

MC-10187006-0001.pdf 426.378KB

 

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Reprogramming

i-HDS Diagnostic Software and J2534 Reprogramming Software

 

Honda J2534 Pass-Thru User Guide

Honda J2534 Pass-Thru Software Download

Latest ECU Software

 

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 a Security Professional 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 by Honda Canada Inc. 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 the J2534 Rewrite 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, 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. J2534 Rewrite 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:

• DST-i Quick Start Guide

• Instruction Manual

• WLAN Setup

MVCI Information:

• User Guide

• FAQs

 

techinfo.honda.com

 

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Last update on 2026-06-11 / Affiliate links / Images from Amazon Product Advertising API

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