TOYOTA
T-SB-0318-17
Manufacturer communications
- Publication date
- 2017-11-20
- Received by NHTSA
- 2018-04-23
- NHTSA record numbers
- 10133646
Manufacturer summary
Original wording in English
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.
Reported code forms
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