Technical Service Bulletin TSB004622 — 2019 TOYOTA MIRAI
ELECTRICAL SYSTEM
Bulletin Details
| TSB ID | TSB004622 |
| Manufacturer | |
| Vehicle | 2019 TOYOTA MIRAI |
| Component | ELECTRICAL SYSTEM |
| Communication Date |
Bulletin 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
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2019 TOYOTA MIRAI
T-SB-0119-20
EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)
T-SB-0136-18
STRUCTURE
T-SB-0197-17_Rev
ELECTRICAL SYSTEM
T-TT-0519-19
FUEL SYSTEM, GASOLINE