# Service bulletin T\-SB\-0318\-17

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10133646
- Published by NHTSA: 2018\-04\-23
- Manufacturer's number: T\-SB\-0318\-17
- Manufacturer's date: 2017\-11\-20
- NHTSA component: FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM

## NHTSA's summary

TSB: Some 2016 ? 2017 model year Mirai vehicles may exhibit a warning message, "FC malfunction, return vehicle to dealer for service." This message is accompanied by Diagnostic Trouble Code \(DTC\) P1DEF \(450 FC Stack Performance\). The Fuel Control Module \(FCM\) calibration has been revised to address this condition.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10133646-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10133646-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Fuel system, Fuel injection

## Trouble codes named

P1DEF

## Vehicles listed

- 2016 to 2017 TOYOTA MIRAI

JSON: [/v1/bulletins/10133646](/v1/bulletins/10133646)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20T-SB-0318-17&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10133646&vehicle=Service%20bulletin%20T-SB-0318-17)