Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2017 Toyota MiraiFACTORY OEM SERVICE PROCEDURE
FC Boost Control System
FC BOOST CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| P0560-117 | System Voltage |
| P060B-450 | Internal Control Module A/D Processing Performance |
| P1D06-450 | U Phase IPM Overcurrent |
| P1D07-450 | V Phase IPM Overcurrent |
| P1D08-450 | W Phase IPM Overcurrent |
| P1D09-450 | X Phase IPM Overcurrent |
| P1D0A-450 | U Phase IPM Overheat |
| P1D0B-450 | V Phase IPM Overheat |
| P1D0C-450 | W Phase IPM Overheat |
| P1D0D-450 | X Phase IPM Overheat |
| P1D0E-450 | FVH (FC Converter Output Voltage)/VH Voltage Correlation |
| P1D0F-450 | FVC (Cell Monitor Voltage)/FVL (FC Converter Input Voltage) Correlation |
| P1D10-450 | U Phase IPM Circuit |
| P1D13-450 | V Phase IPM Circuit |
| P1D16-450 | W Phase IPM Circuit |
| P1D19-450 | X Phase IPM Circuit |
| P1D1C-450 | FVH (FC Converter Output Voltage) Over Voltage/Sensor Circuit |
| P1D1D-450 | FVH (FC Converter Output Voltage)/Over Voltage |
| P1D1E-450 | FC Converter Output Voltage Sensor Circuit Low |
| P1D1F-450 | FC Converter Output Voltage Sensor Circuit High |
| P1D20-450 | FVL (FC Converter Input Voltage) Low Voltage/Sensor Circuit |
| P1D21-450 | FVL (FC Converter Input Voltage)/Low Voltage |
| P1D23-450 | FC Converter Input Voltage Sensor Circuit High |
| P1D31-450 | U Phase Reactor Current Sensor Circuit (Offset) |
| P1D32-450 | U Phase Reactor Current Sensor Circuit Low |
| P1D33-450 | U Phase Reactor Current Sensor Circuit High |
| P1D36-450 | V Phase Reactor Current Sensor Circuit (Offset) |
| P1D37-450 | V Phase Reactor Current Sensor Circuit Low |
| P1D38-450 | V Phase Reactor Current Sensor Circuit High |
| P1D3B-450 | W Phase Reactor Current Sensor Circuit (Offset) |
| P1D3C-450 | W Phase Reactor Current Sensor Circuit Low |
| P1D3D-450 | W Phase Reactor Current Sensor Circuit High |
| P1D41-450 | X Phase Reactor Current Sensor Circuit (Offset) |
| P1D42-450 | X Phase Reactor Current Sensor Circuit Low |
| P1D43-450 | X Phase Reactor Current Sensor Circuit High |
| P1D46-450 | U Phase IGBT Temperature Sensor Correlation |
| P1D47-450 | U Phase IGBT Temperature Sensor Circuit Low |
| P1D48-450 | U Phase IGBT Temperature Sensor Circuit High |
| P1D4B-450 | V Phase IGBT Temperature Sensor Correlation |
| P1D4C-450 | V Phase IGBT Temperature Sensor Circuit Low |
| P1D4D-450 | V Phase IGBT Temperature Sensor Circuit High |
| P1D4F-450 | Total Reactor Current/FC Current Correlation |
| P1D51-450 | W Phase IGBT Temperature Sensor Correlation |
| P1D52-450 | W Phase IGBT Temperature Sensor Circuit Low |
| P1D53-450 | W Phase IGBT Temperature Sensor Circuit High |
| P1D56-450 | X Phase IGBT Temperature Sensor Correlation |
| P1D57-450 | X Phase IGBT Temperature Sensor Circuit Low |
| P1D58-450 | X Phase IGBT Temperature Sensor Circuit High |
| P1D61-450 | V Phase Reactor Temperature/Coolant Temperature Correlation |
| P1D62-450 | V Phase Reactor Temperature Sensor Circuit Low |
| P1D63-450 | V Phase Reactor Temperature Sensor Circuit High |
| P1D9F-450 | Internal Control Module Voltage (+26V Power Source) |
| P1DAF-450 | Internal Control Module Voltage (-5V Power Source) |
| P1DBF-450 | Internal Control Module Voltage (5V Power Source) |
| P1DDA-450 | U Phase Reactor Current Degradation |
| P1DDB-450 | V Phase Reactor Current Degradation |
| P1DDC-450 | W Phase Reactor Current Degradation |
| P1DDD-450 | X Phase Reactor Current Degradation |
| P1DE0-450 | U Phase Output Diode Circuit |
| P1DE1-450 | V Phase Output Diode Circuit |
| P1DE2-450 | W Phase Output Diode Circuit |
| P1DE3-450 | X Phase Output Diode Circuit |
| P2511-450 | FCDC CPU Circuit Intermittent No Continuity |
| U0293-450 | Lost Communication with EV System |
| U1161-450 | Lost Communication with FC System |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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