Warning message, ?FC malfunction, return vehicle to dealer for service.?
Toyota technical service bulletin TSB004622 for 2016-2019 Toyota Mirai.
- Bulletin number
- TSB004622
- Component
- Electrical system
- Summary
- TSB: Some 2016 ? 2019 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
Owners of these vehicles have filed 1 complaints in the electrical category.
Vehicles covered
- Toyota Mirai 2016-2019 2016201720182019
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