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

�Service Bulletin � The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter. Additionally,

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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.�

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.

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