FC BOOST CONTROL SYSTEM, Diagnostic DTC:P1DE0-450, P1DE1-450, P1DE2-450, P1DE3-450

DTC Code DTC Name
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

DESCRIPTION

The FC boost control ECU is located inside the FC converter assembly. It monitors the electric current of the circuits using the reactor current sensor inside the FC converter assembly and detects a short in the diode circuits.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
P1DE0-450 U Phase Output Diode Circuit

A short in the U phase output diode circuit is detected.

(The U phase reactor current output from the negative terminal is estimated to be caused by a reverse charging of the FC stack.)

(1 trip detection logic)

 FC converter assembly Master Warning Light: Comes on
P1DE1-450 V Phase Output Diode Circuit

A short in the V phase output diode circuit is detected.

(The V phase reactor current output from the negative terminal is estimated to be caused by a reverse charging of the FC stack.)

(1 trip detection logic)

 FC converter assembly Master Warning Light: Comes on
P1DE2-450 W Phase Output Diode Circuit

A short in the W phase output diode circuit is detected.

(The W phase reactor current output from the negative terminal is estimated to be caused by a reverse charging of the FC stack.)

(1 trip detection logic)

 FC converter assembly Master Warning Light: Comes on
P1DE3-450 X Phase Output Diode Circuit

A short in the X phase output diode circuit is detected.

(The X phase reactor current output from the negative terminal is estimated to be caused by a reverse charging of the FC stack.)

(1 trip detection logic)

 FC converter assembly Master Warning Light: Comes on
Related Data List
DTC No. Data List
P1DE0-450 U Phase Reactor Current
P1DE1-450 V Phase Reactor Current
P1DE2-450 W Phase Reactor Current
P1DE3-450 X Phase Reactor Current

CAUTION / NOTICE / HINT

Note

When the vehicle is parked with the power switch off, if the FC control ECU judges that the FC stack temperature will go below 0°C (32°F), it activates the FC air compressor, hydrogen pump and FC cooling water pump for a maximum of 180 seconds and drains water from the FC stack assembly. When performing inspection or repairs with the power switch off (not on (IG) or on (READY)), disconnect the cable from the negative (-) auxiliary battery terminal before performing work (If the auxiliary battery voltage is needed to conduct inspection, warm up the FC system beforehand).

Tech Tips

After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


  1. Turn the power switch on (IG).

  2. Enter the following menus: Powertrain / FC / Data List / FC Mode, FC Intermittent Operation.

  3. Move the shift lever to P, turn the power switch on (READY) and wait until the FC system is activated (Waiting for at least 2 minutes is required after turning the power switch on).


    • FC system is activated: Data List shows that "FC Mode" is "FC Working" and "FC Intermittent Operation" is "OFF".

  4. Wait at least 15 seconds with the FC system activated.

  5. Drive the vehicle forward with the shift lever in D for 5 m (16 ft.) or more.

  6. Drive the vehicle backward with the shift lever in R for 5 m (16 ft.) or more.

PROCEDURE


  1. CHECK DTC OUTPUT (FCDC)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / FCDC / Trouble Codes.


      Powertrain > FCDC > Trouble Codes

    5. Check for DTCs.

      Result
      Result Proceed to
      "DTC 1DE0-450, P1DE1-450, P1DE2-450 or P1DE3-450 only is output" or "DTCs except the ones in the table below are also output" A
      Any of the following DTCs are also output B
      Malfunction Content Relevant DTC
      Sensor and actuator circuit malfunction 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

      Tech Tips

      DTC P1DE0-450, P1DE1-450, P1DE2-450 or P1DE3-450 may be output as a result of the malfunction indicated by the DTCs above.

    6. Turn the power switch off.


    B

    GO TO DTC CHART (FC BOOST CONTROL SYSTEM) Click here

    A

  2. CHECK DTC OUTPUT (EV)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / EV / Trouble Codes.


      Powertrain > EV > Trouble Codes

    5. Check for DTCs.

      Result
      Result Proceed to
      "EV related DTCs are not output" or "DTCs except the ones in the table below are output" A
      Any of the following DTCs are output B
      Malfunction Content Relevant DTC
      System malfunction P0A78-121 Drive Motor "A" Inverter Performance

      Tech Tips

      DTC P1DE0-450, P1DE1-450, P1DE2-450 or P1DE3-450 may be output as a result of the malfunction indicated by the DTCs above.

    6. Turn the power switch off.


    B

    GO TO DTC CHART (HYBRID CONTROL SYSTEM) Click here

    A

  3. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / FCDC / Trouble Codes.


      Powertrain > FCDC > Clear DTCs

    5. Clear the DTCs.

      Result
      Proceed to
      NEXT

    6. Turn the power switch off and wait for 3 minutes or more.


    NEXT

  4. CHECK DTC OUTPUT (FCDC)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / FCDC / Trouble Codes.


      Powertrain > FCDC > Trouble Codes

    5. Check for DTCs.

      Result
      Result Proceed to
      DTCs are not output A
      Any of the following DTCs are output B
      Malfunction Content Relevant DTC
      Sensor and actuator circuit malfunction 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

      Tech Tips

      DTC P1DE0-450, P1DE1-450, P1DE2-450 or P1DE3-450 may be output as a result of the malfunction indicated by the DTCs above.

    6. Turn the power switch off.


    B

    GO TO DTC CHART (FC BOOST CONTROL SYSTEM) Click here

    A

  5. SIMULATION TEST


    1. Turn the power switch on (READY).

    2. Drive the vehicle in a city area under the vehicle and driving conditions based on the recorded freeze frame data for approximately 10 minutes.

      CAUTION:

      When performing the confirmation driving pattern, obey all speed limits and traffic laws.

    3. Connect the GTS to the DLC3.

    4. Turn the GTS on.

    5. Enter the following menus: Powertrain / FCDC / Trouble Codes.


      Powertrain > FCDC > Trouble Codes

    6. Check for DTCs.

      Result
      Result Proceed to
      DTCs are not output A
      "DTC P1DE0-450, P1DE1-450, P1DE2-450 or P1DE3-450 only is output" or "DTCs except the ones in the table below are also output" B
      Any of the following DTCs are output C
      Malfunction Content Relevant DTC
      Sensor and actuator circuit malfunction 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

      Tech Tips

      DTC P1DE0-450, P1DE1-450, P1DE2-450 or P1DE3-450 may be output as a result of the malfunction indicated by the DTCs above.

    7. Turn the power switch off.


    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

    B

    REPLACE FC CONVERTER ASSEMBLY Click here

    C

    GO TO DTC CHART (FC BOOST CONTROL SYSTEM) Click here