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.
2016 Toyota MiraiFACTORY OEM SERVICE PROCEDURE
FC Control System
FC CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [06/2015 - 11/2018]
| DTC Code | Description |
|---|---|
| P0100-450 | Mass Air Flow Circuit |
| P0101-450 | Mass Air Flow Circuit Range/Performance |
| P0112-450 | Intake Air Temperature Circuit Low Input |
| P0113-450 | Intake Air Temperature Circuit High Input |
| P0560-117 | System Voltage |
| P060B-134 | Internal Control Module A/D Processing Performance |
| P060B-135 | Internal Control Module A/D Processing Performance |
| P060B-570 | Internal Control Module A/D Processing Performance |
| P1D01-450 | FCDC Control Module Requested MIL Illumination |
| P1D24-450 | Hydrogen Pump Speed Control Performance |
| P1D27-450 | FC Stack Coolant Temperature Sensor (Radiator Outlet) Circuit Low |
| P1D28-450 | FC Stack Coolant Temperature Sensor (Radiator Outlet) Circuit High |
| P1D2C-450 | FC Stack Coolant Temperature Sensor (FC Stack Outlet) Circuit Low |
| P1D2D-450 | FC Stack Coolant Temperature Sensor (FC Stack Outlet) Circuit High |
| P1D2F-450 | FC Water Pump Speed Control Performance |
| P1D3F-450 | FC Stack Voltage Low |
| P1D5F-450 | Lost Communication with Cell Monitor |
| P1D7F-450 | Air Compressor Speed Control Performance |
| P1D83-450 | Hydrogen Pump Inverter Performance |
| P1D84-450 | Lost Communication with Hydrogen Pump Inverter |
| P1D87-450 | Hydrogen Pump Motor Temperature Sensor Circuit Low |
| P1D88-450 | Hydrogen Pump Motor Temperature Sensor Circuit High |
| P1D8C-450 | FC Stack Air Temperature Sensor (FC Stack Inlet) Circuit Low |
| P1D8D-450 | FC Stack Air Temperature Sensor (FC Stack Inlet) Circuit High |
| P1D91-450 | Air Control System Performance |
| P1D92-450 | FC Stack Air Pressure Sensor (FC Stack Inlet) Circuit Low |
| P1D93-450 | FC Stack Air Pressure Sensor (FC Stack Inlet) Circuit High |
| P1D9C-450 | Hydrogen Injector No. 1 Circuit Low |
| P1D9D-450 | Hydrogen Injector No. 1 Circuit High |
| P1DA2-450 | Hydrogen Injector No. 2 Circuit Low |
| P1DA3-450 | Hydrogen Injector No. 2 Circuit High |
| P1DA7-450 | Hydrogen Injector No. 3 Circuit Low |
| P1DA8-450 | Hydrogen Injector No. 3 Circuit High |
| P1DAC-450 | Exhaust Drainage Valve Circuit Low |
| P1DAD-450 | Exhaust Drainage Valve Circuit High |
| P1DB1-450 | High-range Hydrogen Pressure Sensor Correlation |
| P1DB2-450 | High-range Hydrogen Pressure Sensor Circuit Low |
| P1DB3-450 | High-range Hydrogen Pressure Sensor Circuit High |
| P1DB7-450 | Medium-range Hydrogen Pressure Sensor Circuit Low |
| P1DB8-450 | Medium-range Hydrogen Pressure Sensor Circuit High |
| P1DBC-450 | Low-range Hydrogen Pressure Sensor Circuit Low |
| P1DBD-450 | Low-range Hydrogen Pressure Sensor Circuit High |
| P1DC0-450 | Low-range Hydrogen Pressure Too Low |
| P1DC1-450 | Low-range Hydrogen Pressure Too High |
| P1DC3-450 | Medium-range Hydrogen Pressure Too High |
| P1DC5-450 | Air Pressure Too High |
| P1DC8-450 | FC Water Pump Inverter Performance |
| P1DC9-450 | Lost Communication with FC Water Pump Inverter |
| P1DCC-450 | Motor Room Side Hydrogen Detector Circuit Low |
| P1DCD-450 | Motor Room Side Hydrogen Detector Circuit High |
| P1DCF-450 | Cell Monitor Performance |
| P1DD2-450 | Tank Side Hydrogen Detector Circuit Low |
| P1DD3-450 | Tank Side Hydrogen Detector Circuit High |
| P1DD5-450 | Radiator Rotary Valve Circuit |
| P1DE4-450 | FC Coolant Water Temperature Malfunction |
| P1DE6-450 | Hydrogen Tank Temperature Sensor Correlation |
| P1DE7-450 | Hydrogen Tank No. 1 Temperature Sensor Circuit Low |
| P1DE8-450 | Hydrogen Tank No. 1 Temperature Sensor Circuit High |
| P1DEC-450 | Hydrogen Tank No. 2 Temperature Sensor Circuit Low |
| P1DED-450 | Hydrogen Tank No. 2 Temperature Sensor Circuit High |
| P1DEF-450 | FC Stack Performance |
| P1DF2-450 | Hydrogen Pump Inverter Drive Signal Stuck ON |
| P1DF3-450 | Hydrogen Pump Inverter Drive Signal Stuck OFF |
| P1DF7-450 | FC Water Pump Inverter Drive Signal Stuck ON |
| P1DF8-450 | FC Water Pump Inverter Drive Signal Stuck OFF |
| P1DFC-450 | Hydrogen Filling System High Pressure Sensor Circuit Low |
| P1DFD-450 | Hydrogen Filling System High Pressure Sensor Circuit High |
| P1E02-450 | Tank Shut Valve1 Circuit Low |
| P1E03-450 | Tank Shut Valve1 Circuit High |
| P1E12-450 | Tank Shut Valve2 Circuit Low |
| P1E13-450 | Tank Shut Valve2 Circuit High |
| P1E19-450 | Infrared Transmitter Circuit |
| P1E22-450 | Air Pressure Regulating Valve Phase A Circuit Low |
| P1E23-450 | Air Pressure Regulating Valve Phase A Circuit High |
| P1E27-450 | Air Pressure Regulating Valve Phase B Circuit Low |
| P1E28-450 | Air Pressure Regulating Valve Phase B Circuit High |
| P1E2C-450 | Air Shunt Valve Phase A Circuit Low |
| P1E2D-450 | Air Shunt Valve Phase A Circuit High |
| P1E32-450 | Air Shunt Valve Phase B Circuit Low |
| P1E33-450 | Air Shunt Valve Phase B Circuit High |
| P1E36-450 | Tank Shut Valve 1 Stuck Open or Close |
| P1E38-450 | Tank Shut Valve 2 Stuck Open or Close |
| P1E40-450 | Hydrogen Leak (Motor Room Side) |
| P1E41-450 | Hydrogen Leak (Tank Side) |
| P1E42-450 | Hydrogen Pressure Leak (Excessive Hydrogen Flow) |
| P1E43-450 | Hydrogen Pressure Leak (High/Medium Pressure Area) |
| P1E44-450 | Hydrogen Pressure Leak (Low Pressure Area) |
| P1E47-450 | FC Stack Coolant Temperature Sensor (FC Stack Outlet / Radiator Outlet) Correlation |
| P1E48-450 | Barometric Pressure Sensor / FC Stack Air Pressure Sensor (FC Stack Inlet) Correlation |
| P1E49-450 | Mass Air Flow Temperature Sensor Correlation |
| P1E6B-450 | Fuel Lid Interlock Stuck Closed |
| P2228-450 | Barometric Pressure Sensor "A" Circuit Low |
| P2229-450 | Barometric Pressure Sensor "A" Circuit High |
| U0164-450 | Lost Communication with HVAC Control Module |
| U0293-450 | Lost Communication with EV System |
| U1160-450 | Lost Communication with FCDC System |
| U1162-450 | Lost Communication with Hydrogen Filling System |
FC CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [11/2018 - ]
| DTC Code | Description |
|---|---|
| P0100-450 | Mass Air Flow Circuit |
| P0101-450 | Mass Air Flow Circuit Range/Performance |
| P0112-450 | Intake Air Temperature Circuit Low Input |
| P0113-450 | Intake Air Temperature Circuit High Input |
| P0560-117 | System Voltage |
| P060B-134 | Internal Control Module A/D Processing Performance |
| P060B-135 | Internal Control Module A/D Processing Performance |
| P060B-570 | Internal Control Module A/D Processing Performance |
| P1D01-450 | FCDC Control Module Requested MIL Illumination |
| P1D24-450 | Hydrogen Pump Speed Control Performance |
| P1D27-450 | FC Stack Coolant Temperature Sensor (Radiator Outlet) Circuit Low |
| P1D28-450 | FC Stack Coolant Temperature Sensor (Radiator Outlet) Circuit High |
| P1D2C-450 | FC Stack Coolant Temperature Sensor (FC Stack Outlet) Circuit Low |
| P1D2D-450 | FC Stack Coolant Temperature Sensor (FC Stack Outlet) Circuit High |
| P1D2F-450 | FC Water Pump Speed Control Performance |
| P1D3F-450 | FC Stack Voltage Low |
| P1D5F-450 | Lost Communication with Cell Monitor |
| P1D7F-450 | Air Compressor Speed Control Performance |
| P1D83-450 | Hydrogen Pump Inverter Performance |
| P1D84-450 | Lost Communication with Hydrogen Pump Inverter |
| P1D87-450 | Hydrogen Pump Motor Temperature Sensor Circuit Low |
| P1D88-450 | Hydrogen Pump Motor Temperature Sensor Circuit High |
| P1D8C-450 | FC Stack Air Temperature Sensor (FC Stack Inlet) Circuit Low |
| P1D8D-450 | FC Stack Air Temperature Sensor (FC Stack Inlet) Circuit High |
| P1D91-450 | Air Control System Performance |
| P1D92-450 | FC Stack Air Pressure Sensor (FC Stack Inlet) Circuit Low |
| P1D93-450 | FC Stack Air Pressure Sensor (FC Stack Inlet) Circuit High |
| P1D9C-450 | Hydrogen Injector No. 1 Circuit Low |
| P1D9D-450 | Hydrogen Injector No. 1 Circuit High |
| P1DA2-450 | Hydrogen Injector No. 2 Circuit Low |
| P1DA3-450 | Hydrogen Injector No. 2 Circuit High |
| P1DA7-450 | Hydrogen Injector No. 3 Circuit Low |
| P1DA8-450 | Hydrogen Injector No. 3 Circuit High |
| P1DAC-450 | Exhaust Drainage Valve Circuit Low |
| P1DAD-450 | Exhaust Drainage Valve Circuit High |
| P1DB1-450 | High-range Hydrogen Pressure Sensor Correlation |
| P1DB2-450 | High-range Hydrogen Pressure Sensor Circuit Low |
| P1DB3-450 | High-range Hydrogen Pressure Sensor Circuit High |
| P1DB7-450 | Medium-range Hydrogen Pressure Sensor Circuit Low |
| P1DB8-450 | Medium-range Hydrogen Pressure Sensor Circuit High |
| P1DBC-450 | Low-range Hydrogen Pressure Sensor Circuit Low |
| P1DBD-450 | Low-range Hydrogen Pressure Sensor Circuit High |
| P1DC0-450 | Low-range Hydrogen Pressure Too Low |
| P1DC1-450 | Low-range Hydrogen Pressure Too High |
| P1DC3-450 | Medium-range Hydrogen Pressure Too High |
| P1DC5-450 | Air Pressure Too High |
| P1DC8-450 | FC Water Pump Inverter Performance |
| P1DC9-450 | Lost Communication with FC Water Pump Inverter |
| P1DCC-450 | Motor Room Side Hydrogen Detector Circuit Low |
| P1DCD-450 | Motor Room Side Hydrogen Detector Circuit High |
| P1DCF-450 | Cell Monitor Performance |
| P1DD2-450 | Tank Side Hydrogen Detector Circuit Low |
| P1DD3-450 | Tank Side Hydrogen Detector Circuit High |
| P1DD5-450 | Radiator Rotary Valve Circuit |
| P1DE4-450 | FC Coolant Water Temperature Malfunction |
| P1DE6-450 | Hydrogen Tank Temperature Sensor Correlation |
| P1DE7-450 | Hydrogen Tank No. 1 Temperature Sensor Circuit Low |
| P1DE8-450 | Hydrogen Tank No. 1 Temperature Sensor Circuit High |
| P1DEC-450 | Hydrogen Tank No. 2 Temperature Sensor Circuit Low |
| P1DED-450 | Hydrogen Tank No. 2 Temperature Sensor Circuit High |
| P1DEF-450 | FC Stack Performance |
| P1DF2-450 | Hydrogen Pump Inverter Drive Signal Stuck ON |
| P1DF3-450 | Hydrogen Pump Inverter Drive Signal Stuck OFF |
| P1DF7-450 | FC Water Pump Inverter Drive Signal Stuck ON |
| P1DF8-450 | FC Water Pump Inverter Drive Signal Stuck OFF |
| P1DFC-450 | Hydrogen Filling System High Pressure Sensor Circuit Low |
| P1DFD-450 | Hydrogen Filling System High Pressure Sensor Circuit High |
| P1E02-450 | Tank Shut Valve1 Circuit Low |
| P1E03-450 | Tank Shut Valve1 Circuit High |
| P1E12-450 | Tank Shut Valve2 Circuit Low |
| P1E13-450 | Tank Shut Valve2 Circuit High |
| P1E19-450 | Infrared Transmitter Circuit |
| P1E22-450 | Air Pressure Regulating Valve Phase A Circuit Low |
| P1E23-450 | Air Pressure Regulating Valve Phase A Circuit High |
| P1E27-450 | Air Pressure Regulating Valve Phase B Circuit Low |
| P1E28-450 | Air Pressure Regulating Valve Phase B Circuit High |
| P1E2C-450 | Air Shunt Valve Phase A Circuit Low |
| P1E2D-450 | Air Shunt Valve Phase A Circuit High |
| P1E32-450 | Air Shunt Valve Phase B Circuit Low |
| P1E33-450 | Air Shunt Valve Phase B Circuit High |
| P1E36-450 | Tank Shut Valve 1 Stuck Open or Close |
| P1E38-450 | Tank Shut Valve 2 Stuck Open or Close |
| P1E40-450 | Hydrogen Leak (Motor Room Side) |
| P1E41-450 | Hydrogen Leak (Tank Side) |
| P1E42-450 | Hydrogen Pressure Leak (Excessive Hydrogen Flow) |
| P1E43-450 | Hydrogen Pressure Leak (High/Medium Pressure Area) |
| P1E44-450 | Hydrogen Pressure Leak (Low Pressure Area) |
| P1E47-450 | FC Stack Coolant Temperature Sensor (FC Stack Outlet / Radiator Outlet) Correlation |
| P1E48-450 | Barometric Pressure Sensor / FC Stack Air Pressure Sensor (FC Stack Inlet) Correlation |
| P1E49-450 | Mass Air Flow Temperature Sensor Correlation |
| P1E6B-450 | Fuel Lid Interlock Stuck Closed |
| P2228-450 | Barometric Pressure Sensor "A" Circuit Low |
| P2229-450 | Barometric Pressure Sensor "A" Circuit High |
| U0164-450 | Lost Communication with HVAC Control Module |
| U0293-450 | Lost Communication with EV System |
| U1160-450 | Lost Communication with FCDC System |
| U1162-450 | Lost Communication with Hydrogen Filling 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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