HYBRID CONTROL SYSTEM, Diagnostic DTC:P3107-214

DTC Code DTC Name
P3107-214 Airbag ECU Communication Circuit Malfunction

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 sensor assembly

  • Power management control ECU

WIRING DIAGRAM

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

Refer to the wiring diagram for DTC P0AE6-225 Click here.

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC OUTPUT (AIRBAG)


    1. Connect the intelligent tester 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 Click here

    A

  2. CHECK AIRBAG SENSOR ASSEMBLY (CHECK WAVEFORM)


    1. Turn the power switch on (READY).

    2. A01JD7ME03
      Text in Illustration
      *1

      Component with harness connected

      (Airbag Sensor Assembly)

      Connect an oscilloscope between the airbag sensor assembly terminals specified in the table below, and 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

    3. Turn the power switch off.


    B

    Click here

    A

  3. CLEAR DTC


    1. Connect the intelligent tester 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.


    NEXT

  4. CHECK DTC OUTPUT (HV)


    1. Connect the intelligent tester 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 POWER MANAGEMENT CONTROL ECU Click here

    A

  5. CHECK FOR INTERMITTENT PROBLEMS


    1. Check for intermittent problems Click here.


    NG

    REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

    OK

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

  6. CHECK CONNECTOR CONNECTION CONDITION (POWER MANAGEMENT CONTROL ECU CONNECTOR)


    1. Check the connections of the power management control ECU connectors.

      A01JA9CE01
      Text in Illustration
      *1 for LHD *2 for RHD
      OK
      The connectors are connected securely and there are no contact problems.

    NG

    CONNECT SECURELY

    OK

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


    1. A01JD8OE01
      Text in Illustration
      *1

      Component with harness connected

      (Airbag Sensor Assembly)

      Check the connections of the airbag sensor assembly connectors.

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

    NG

    CONNECT SECURELY

    OK

  8. CHECK HARNESS AND CONNECTOR (+B SHORT)


    1. A01JBMXE01
      Text in Illustration
      *1 Engine Room Junction Block Assembly
      *2 AM2 Fuse
      *3 IGCT NO. 2 Fuse

      Remove the IGCT NO. 2 fuse and AM2 fuse from the engine room junction block assembly.

    2. Disconnect connector L16 from the airbag sensor assembly.

    3. A01JBKUE03
      Text in Illustration
      *1

      Component with harness connected

      (Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      L5-29 (ABFS) - A21-2 (+B2) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - A22-5 (+B1) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - L5-1 (AM22) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - L6-7 (AM21) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - A22-6 (MREL) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - A22-1 (IG2) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - L6-1 (ACCD) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - L6-2 (IG1D) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - A22-2 (IG2D) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - L5-14 (SPDI) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - A21-16 (GI) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - A21-4 (FCTL) Power switch off 10 kΩ or higher

    4. Connect the airbag sensor assembly connector.

    5. Install the IGCT NO. 2 fuse and AM2 fuse.


    NG

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

    OK

  9. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - AIRBAG SENSOR ASSEMBLY)


    1. Disconnect connector L5 from the power management control ECU.

    2. Disconnect connector L16 from the airbag sensor assembly.

    3. A01J8P4E01
      Text in Illustration
      *1

      Rear view of wire harness connector

      (to Power Management Control ECU)
      *2

      Rear view of wire harness connector

      (to Airbag Sensor Assembly)

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

      Standard Resistance (Check for Open)
      Tester Connection Switch Condition Specified Condition
      L5-29 (ABFS) - L16-14 (GSW2) Power switch off Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Switch Condition Specified Condition
      L5-29 (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. Connect the airbag sensor assembly connector.

    5. Connect the power management control ECU connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. CHECK POWER MANAGEMENT CONTROL ECU


    1. Disconnect connector L16 from the airbag sensor assembly.

    2. Turn the power switch on (IG).

    3. A01JAKSE34
      Text in Illustration
      *1

      Component with harness connected

      (Power Management Control ECU)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      L5-29 (ABFS) - Body ground Power switch on (IG) 11 to 14 V

      Note

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

    4. Connect the airbag sensor assembly connector.


    NG

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

    OK

    REPLACE AIRBAG SENSOR ASSEMBLY Click here

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


    1. A01JBMXE01
      Text in Illustration
      *1 Engine Room Junction Block Assembly
      *2 AM2 Fuse
      *3 IGCT NO. 2 Fuse

      Remove the IGCT NO. 2 fuse and AM2 fuse from the engine room junction block assembly.

    2. Disconnect connector L16 from the airbag sensor assembly.

    3. Disconnect all the connectors from the power management control ECU.

    4. A01J9DGE11
      Text in Illustration
      *1

      Rear view of wire harness connector

      (to Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      L5-29 (ABFS) - A21-2 (+B2) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - A22-5 (+B1) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - L5-1 (AM22) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - L6-7 (AM21) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - A22-6 (MREL) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - A22-1 (IG2) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - L6-1 (ACCD) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - L6-2 (IG1D) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - A22-2 (IG2D) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - L5-14 (SPDI) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - A21-16 (GI) Power switch off 10 kΩ or higher
      L5-29 (ABFS) - A21-4 (FCTL) Power switch off 10 kΩ or higher

    5. Connect the power management control ECU connectors.

    6. Connect the airbag sensor assembly connector.

    7. Install the IGCT NO. 2 fuse and AM2 fuse.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE POWER MANAGEMENT CONTROL ECU Click here