RAM
18-021-26
Comunicados do fabricante
- Data de publicação
- 2026-02-14
- Recebido pela NHTSA
- 2026-02-19
- Números de registro NHTSA
- 11028882
Resumo do fabricante
Texto original em inglês
Flash: Powertrain Control Module (PCM) Updates Customers **must** experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle **must** SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):
• P0300-00 - Multiple Cylinder Misfire - in Active or Stored status set during cold start catalyst heating.
• P0301-00 - Cylinder 1 Misfire - in Active or Stored status set during cold start catalyst heating.
• P0302-00 - Cylinder 2 Misfire - in Active or Stored status set during cold start catalyst heating.
• P0303-00 - Cylinder 3 Misfire - in Active or Stored status set during cold start catalyst heating.
• P0304-00 - Cylinder 4 Misfire - in Active or Stored status set during cold start catalyst heating.
• P0305-00 - Cylinder 5 Misfire - in Active or Stored status set during cold start catalyst heating.
• P0306-00 - Cylinder 6 Misfire - in Active or Stored status set during cold start catalyst heating.**
• P2097 - Downstream Fuel Trim System 1 Rich.
• P2099 - Downstream Fuel Trim System 2 Rich. **Customers may comment on one or more of the following:
• Vehicle has a rough idle.
• Engine has a miss.
• Noisy valvetrain.**
• Lack power/responsiveness for the first couple of minutes or about 90 seconds after a cold start and later performs as expected. This bulletin involves reprogramming the PCM with the latest available software.
• P0300-00 - Multiple Cylinder Misfire - in Active or Stored status set during cold start catalyst heating.
• P0301-00 - Cylinder 1 Misfire - in Active or Stored status set during cold start catalyst heating.
• P0302-00 - Cylinder 2 Misfire - in Active or Stored status set during cold start catalyst heating.
• P0303-00 - Cylinder 3 Misfire - in Active or Stored status set during cold start catalyst heating.
• P0304-00 - Cylinder 4 Misfire - in Active or Stored status set during cold start catalyst heating.
• P0305-00 - Cylinder 5 Misfire - in Active or Stored status set during cold start catalyst heating.
• P0306-00 - Cylinder 6 Misfire - in Active or Stored status set during cold start catalyst heating.**
• P2097 - Downstream Fuel Trim System 1 Rich.
• P2099 - Downstream Fuel Trim System 2 Rich. **Customers may comment on one or more of the following:
• Vehicle has a rough idle.
• Engine has a miss.
• Noisy valvetrain.**
• Lack power/responsiveness for the first couple of minutes or about 90 seconds after a cold start and later performs as expected. This bulletin involves reprogramming the PCM with the latest available software.
Códigos no documento
Descrição do fabricante
O texto varia por veículo e sufixo; não é diagnóstico universal.
Ram
P0300-00Multiple Cylinder Misfire - in Active or Stored status set during cold start catalyst heatingRam
P0301-00Cylinder 1 Misfire - in Active or Stored status set during cold start catalyst heatingRam
P0302-00Cylinder 2 Misfire - in Active or Stored status set during cold start catalyst heatingRam
P0303-00Cylinder 3 Misfire - in Active or Stored status set during cold start catalyst heatingRam
P0304-00Cylinder 4 Misfire - in Active or Stored status set during cold start catalyst heatingRam
P0305-00Cylinder 5 Misfire - in Active or Stored status set during cold start catalyst heatingRam
P0306-00Cylinder 6 Misfire - in Active or Stored status set during cold start catalyst heatingRam
P2097Downstream Fuel Trim System 1 RichRam
P2099Downstream Fuel Trim System 2 RichConfira a aplicação ao veículo
A relação com um veículo é uma pista. Confirme motor, produção e software na documentação do fabricante.
| Marca | Modelo | Ano-modelo |
|---|---|---|
| Ram | 1500 | 2022 |