2021 Honda Civic Type R MIL On DTC P0300/P0304

American Honda Motor Co., Inc. (AHM) has issued a communication to its dealerships regarding certain 2017-2021 Civic Type R vehicles. The company is actively searching for vehicles that exhibit a Malfunction Indicator Light (MIL) illuminated on the dashboard, accompanied by specific diagnostic trouble codes (DTCs).

This initiative, identified by NHTSA ID 10240765, is a parts collection effort. AHM aims to gather components from affected vehicles to gain a deeper understanding of the underlying cause of the condition before attempting any repair. If your 2021 Honda Civic Type R displays these symptoms, it might qualify for this investigation.

Symptoms

Owners of affected Honda Civic Type R vehicles will typically observe the Malfunction Indicator Light (MIL) illuminated on their dashboard. This warning light indicates a detected issue within the vehicle's engine or emissions system.

Fault Codes / DTCs

The primary diagnostic trouble codes (DTCs) that American Honda Motor Co., Inc. is interested in for this investigation are P0300 and P0304. These codes specifically point to engine misfire conditions:

• P0300: "Random Misfire Detected"
• P0304: "No. 4 Cylinder Misfire Detected"

It is important to note that vehicles storing DTCs P0301, P0302, or P0303 will not qualify for this specific parts collection initiative.

Investigation Details

AHM's objective is to collect specific parts from vehicles exhibiting the Malfunction Indicator Light (MIL) with DTC P0300 and/or P0304. This data collection is crucial for engineers to thoroughly analyze and understand the root cause of these misfire conditions. By examining the actual components, Honda aims to develop a comprehensive solution.

Qualifying Conditions for Investigation

For a vehicle to be considered for this parts collection initiative, it must meet several strict criteria. Dealerships are instructed to only submit vehicles that satisfy all the following requirements:

1. The vehicle must only have DTC P0300 and/or P0304 stored.
2. If DTCs P0301, P0302, or P0303 are stored, the vehicle does not qualify.
3. There must be no deformation or chipping observed around the plug top coil seating area.
4. Previous replacement of the cylinder head cover, plug top coil, or spark plugs is accepted, provided it is disclosed.
5. The vehicle must not have been involved in a collision.
6. No repair attempt for this specific issue should have been made previously.

What Owners Should Know

This communication is a request for parts collection, not a standard repair bulletin or recall. It signifies that Honda is actively researching a potential issue. Owners should be aware that if their vehicle meets the specific qualifying conditions, Honda is interested in collecting parts from it to aid in their investigation. It is critical that no repair is attempted on the issue before contacting your dealer if you believe your vehicle qualifies.

As a gesture of appreciation, technicians who identify and report a qualifying vehicle that is accepted for parts collection will receive a Visa gift card from AHM.

Next Steps for Owners

If your 2017-2021 Honda Civic Type R is displaying the Malfunction Indicator Light (MIL) and you suspect it might be storing DTC P0300 and/or P0304, and it meets the other qualifying conditions, you should contact your local Honda dealership. The dealership's Technical Information & Support (TIS) team will need to record specific vehicle information and provide further instructions. They will require your vehicle's model year, model name, the issue (e.g., "misfire"), VIN, your dealer number, your name, best phone number, current mileage, and DPTS#.

Source: NHTSA ID 10240765