HYBRID CONTROL SYSTEM, Diagnostic DTC:P3107-214

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

DESCRIPTION


DTC No. INF Code DTC Detection Condition Trouble Area
P3107 214 Open or short to +B in the communication circuit

  • Wire harness or connector

  • Airbag ECU assembly

  • Hybrid vehicle control ECU

WIRING DIAGRAM

Refer to the wiring diagram for DTC P3107-213 Click here.

CAUTION / NOTICE / HINT

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 if DTCs are output.

      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)


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

    2. Turn the power switch on (READY).

    3. A005CL6E03
      Text in Illustration
      *a

      Component with harness connected

      (Airbag ECU Assembly)

      Measure the waveform.

      Item Contents
      Terminal L16-14 (GSW2) - L16-25 (E1)
      Equipment Setting 5V/DIV., 500ms/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 (HYBRID VEHICLE CONTROL ECU CONNECTOR) Click here

    A

  3. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Clear DTCs and freeze frame data.

    5. Turn the power switch off.


    NEXT

  4. CHECK DTC OUTPUT (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Check if DTCs are output.

      Result
      Result Proceed to
      DTC P3107-214 is not output. A
      DTC P3107-214 is output again. B

    5. Turn the power switch off.


    B

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    A

  5. CHECK FOR INTERMITTENT PROBLEMS

    Click here


    OK

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

    NG

    REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

  6. CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR)


    1. Check the connector connections and contact pressure of the relevant terminals for the hybrid vehicle control ECU connectors Click here.

      B005ZP3E01
      Text in Illustration
      *A for LHD *B for RHD
      OK
      The connectors are connected securely and there are no contact pressure problems.

    NG

    CONNECT SECURELY

    OK

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


    1. A005EAYE04
      Text in Illustration
      *a

      Component with harness connected

      (Airbag ECU Assembly)

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

      OK
      The connectors are connected securely and there are no contact pressure problems.

    NG

    CONNECT SECURELY

    OK

  8. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - AIRBAG ECU ASSEMBLY)


    1. Disconnect the L6 hybrid vehicle control ECU connector.

    2. Disconnect the L16 airbag ECU assembly connector.

    3. A005E2YE02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Hybrid Vehicle 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 (Check for Open)
      Tester Connection Condition Specified Condition
      L6-14 (ABFS) - L16-14 (GSW2) Power switch off Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      L6-14 (ABFS) or L16-14 (GSW2) - Body ground and other terminals Power switch off 10 kΩ or higher

      Tech Tips

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

    4. Reconnect the airbag ECU assembly connector.

    5. Reconnect the hybrid vehicle control ECU connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. CHECK HYBRID VEHICLE CONTROL ECU


    1. A005BKDE02

      Disconnect the L16 airbag ECU assembly connector.

    2. Turn the power switch on (IG).

    3. A005CJUE02
      Text in Illustration
      *a

      Component with harness connected

      (Hybrid Vehicle Control ECU)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      L6-14 (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 L16 airbag ECU assembly connector.


    OK

    REPLACE AIRBAG ECU ASSEMBLY Click here

    NG

    REPLACE HYBRID VEHICLE CONTROL ECU Click here