HYBRID CONTROL SYSTEM, Diagnostic DTC:P3107-214

DTC Code DTC Name
P3107-214 Lost Communication with Airbag System Control Module

DESCRIPTION

Refer to the description for DTC P3107-213.

Click here

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate
P3107-214 Lost Communication with Airbag System Control Module

Open or short to +B in the communication circuit

(1 trip detection logic)

  • Wire harness or connector

  • Airbag ECU assembly

  • EV control ECU

Master Warning Light:

Comes on
Related Data List
DTC No. Data List
P3107-214 Collision Signal (Airbag)

WIRING DIAGRAM

Refer to the wiring diagram for DTC P3107-213.

Click here

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) and wait for 15 seconds or more.

PROCEDURE


  1. CHECK DTC OUTPUT (SRS AIRBAG)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Body Electrical / SRS Airbag / Trouble Codes.

    4. Check for DTCs.


      Body Electrical > SRS Airbag > Trouble Codes
      Result
      Result Proceed to
      Airbag system DTCs are not output. A
      Airbag system DTCs are output. B

    5. Turn the power switch off.


    B

    GO TO DTC CHART (AIRBAG SYSTEM) Click here

    A

  2. CHECK AIRBAG ECU ASSEMBLY (CHECK WAVEFORM)

    Result
    Result Proceed to
    The waveform appears as shown in the illustration. A
    The waveform differs from the one shown in the illustration. B

    1. Connect an oscilloscope between the airbag ECU assembly terminals specified in the table below.

    2. Turn the power switch on (READY).

    3. A01MHUEC22
      *a

      Component with harness connected

      (Airbag ECU Assembly)

      Measure the waveform.

      Item Contents
      Terminal G33-14 (GSW2) - G33-25 (E1)
      Equipment Setting 5 V/DIV., 500 ms./DIV.
      Condition Power switch on (READY)
      Result
      Result Proceed to
      The waveform appears as shown in the illustration. A
      The waveform differs from the one shown in the illustration. B

    4. Turn the power switch off.


    B

    CHECK CONNECTOR CONNECTION CONDITION (EV CONTROL ECU CONNECTOR) Click here

    A

  3. CLEAR DTC

    Result
    Proceed to
    NEXT

    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

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

    4. Read and record the DTCs and freeze frame data.


      Powertrain > EV > Trouble Codes

    5. Clear the DTCs and freeze frame data.


      Powertrain > EV > Clear DTCs

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

      Result
      Proceed to
      NEXT

    NEXT

  4. CHECK DTC OUTPUT (EV)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

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

    4. Check for DTCs.


      Powertrain > EV > Trouble Codes
      Result
      result Proceed to
      P3107-214 is not output. A
      P3107-214 is output again. B

    5. Turn the power switch off.


    B

    REPLACE EV CONTROL ECU Click here

    A

  5. CHECK FOR INTERMITTENT PROBLEMS

    Click here

    Result
    Proceed to
    OK
    NG

    OK

    REPLACE EV CONTROL ECU Click here

    NG

    REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

  6. CHECK CONNECTOR CONNECTION CONDITION (EV CONTROL ECU CONNECTOR)

    Result
    Proceed to
    OK
    NG

    1. A01MGTOC01
      *A for LHD
      *B for RHD

      Check the connector connections and contact pressure of the relevant terminals for the EV control ECU connectors.

      Click here

      OK
      The connectors are connected securely and there are no contact pressure problems.
      Result
      Proceed to
      OK
      NG

    NG

    CONNECT SECURELY

    OK

  7. CHECK CONNECTOR CONNECTION CONDITION (AIRBAG ECU ASSEMBLY CONNECTOR)


    1. A01MGAKC22
      *a

      Component with harness connected

      (Airbag ECU Assembly)

      Check the connector connections and contact pressure of the relevant terminals for the airbag ECU assembly connector.

      OK
      The connectors are connected securely and there are no contact pressure problems.
      Result
      Proceed to
      OK
      NG

    NG

    CONNECT SECURELY

    OK

  8. CHECK HARNESS AND CONNECTOR (+B SHORT)


    1. B000ZKFC02
      *1 Motor Compartment Relay Block
      *2 MPX-B Fuse
      *3 IG2 NO.2 Fuse
      *4 PM-IGCT Fuse

      Remove the PM-IGCT fuse, MPX-B fuse and IG2 NO.2 fuse from the motor compartment relay block.

    2. A01MI2FC31
      *a

      Rear view of wire harness connector

      (Airbag ECU Assembly)

      Disconnect the airbag ECU assembly connector.

    3. A01MG4FC97
      *a

      Component with harness connected

      (EV Control ECU)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      G46-14 (ABFS) - A28-1 (+B2) Power switch off 10 kΩ or higher
      G46-14 (ABFS) - A27-4 (+B1) Power switch off 10 kΩ or higher
      G46-14 (ABFS) - G46-3 (BATT) Power switch off 10 kΩ or higher
      G46-14 (ABFS) - A27-6 (MREL) Power switch off 10 kΩ or higher
      G46-14 (ABFS) - A28-3 (IG2) Power switch off 10 kΩ or higher

    4. Reconnect the airbag ECU assembly connector.

    5. Install the PM-IGCT fuse, MPX-B fuse and IG2 NO.2 fuse.

      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (SHORT TO POWER SUPPLY WIRES) Click here

    OK

  9. CHECK HARNESS AND CONNECTOR (EV CONTROL ECU - AIRBAG ECU ASSEMBLY)


    1. Disconnect the EV control ECU connector.

    2. Disconnect the airbag ECU assembly connector.

    3. A01MIPJC22
      *a

      Rear view of wire harness connector

      (to EV Control ECU)
      *b

      Rear view of wire harness connector

      (to Airbag ECU Assembly)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      G46-14 (ABFS) - G33-14 (GSW2) Power switch off Below 1 Ω
      G46-14 (ABFS) or G33-14 (GSW2) - Body ground and other terminals Power switch off 10 kΩ or higher

      Tech Tips

      As necessary, check that there are no wires shorted to power supply when performing the above wire harness inspection.

    4. Reconnect the airbag ECU assembly connector.

    5. Reconnect the EV control ECU connector.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. CHECK EV CONTROL ECU


    1. A01MI2FC32
      *a

      Rear view of wire harness connector

      (Airbag ECU Assembly)

      Disconnect the airbag ECU assembly connector.

    2. Turn the power switch on (IG).

    3. A01MIOSC78
      *a

      Component with harness connected

      (EV Control ECU)

      Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      G46-14 (ABFS) - Body ground Power switch on (IG) 11 to 14 V

      Note

      Turning the power switch on (IG) with the airbag ECU assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    4. Turn the power switch off.

    5. Reconnect the airbag ECU assembly connector.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE AIRBAG ECU ASSEMBLY Click here

    NG

    REPLACE EV CONTROL ECU Click here

  11. CHECK HARNESS AND CONNECTOR (SHORT TO POWER SUPPLY WIRES)


    1. B000ZKFC02
      *1 Motor Compartment Relay Block
      *2 MPX-B Fuse
      *3 IG2 NO.2 Fuse
      *4 PM-IGCT Fuse

      Remove the PM-IGCT fuse, MPX-B fuse and IG2 NO.2 fuse from the motor compartment relay block.

    2. A01MI2FC33
      *a

      Rear view of wire harness connector

      (to Airbag ECU Assembly)

      Disconnect the airbag ECU assembly connector.

    3. Disconnect the EV control ECU connectors.

    4. A01MJGUC52
      *a

      Rear view of wire harness connector

      (to EV Control ECU)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      G46-14 (ABFS) - A28-1 (+B2) Power switch off 10 kΩ or higher
      G46-14 (ABFS) - A27-4 (+B1) Power switch off 10 kΩ or higher
      G46-14 (ABFS) - G46-3 (BATT) Power switch off 10 kΩ or higher
      G46-14 (ABFS) - A27-6 (MREL) Power switch off 10 kΩ or higher
      G46-14 (ABFS) - A28-3 (IG2) Power switch off 10 kΩ or higher

    5. Reconnect the airbag ECU assembly connector.

    6. Reconnect the EV control ECU connectors.

    7. Install the PM-IGCT fuse, MPX-B fuse and IG2 NO.2 fuse.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE EV CONTROL ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR