HYBRID CONTROL SYSTEM, Diagnostic DTC:P0ADD15

DTC Code DTC Name
P0ADD15 Hybrid/EV Battery Negative Contactor Circuit Short to Auxiliary Battery or Open

DESCRIPTION

Refer to the description for DTC P0AE411.

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DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0ADD15 Hybrid/EV Battery Negative Contactor Circuit Short to Auxiliary Battery or Open

Open or short to +B in SMRG circuit:

Primary circuit of SMR (-) is malfunctioning.

(2 trip detection logic)

  • Wire harness or connector

  • HV battery junction block assembly

  • Hybrid vehicle control ECU assembly

 Does not come on

Master Warning Light:

Comes on
Related Data List
DTC No. Data List
P0ADD15

  • VL-Voltage before Boosting

  • VH-Voltage after Boosting

  • Hybrid Battery Voltage

  • SMRP Status

  • SMRB Status

  • SMRG Status

  • SMRP Control Status

  • SMRB Control Status

  • SMRG Control Status

  • Boosting Converter Shutdown Status

  • Generator Inverter Shutdown Status

  • Motor Inverter Shutdown Status

CONFIRMATION DRIVING PATTERN

Tech Tips

After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

Click here


  1. Connect the GTS to the DLC3.

  2. Turn the power switch on (IG) and turn the GTS on.

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  4. Turn the power switch off and wait for 2 minutes or more.

  5. Turn the power switch on (READY) and wait for 30 seconds or more.

  6. Turn the power switch off and wait for 60 seconds or more.

  7. Turn the power switch on (IG) and turn the GTS on.

  8. Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.

  9. Check the DTC judgment result.

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform driving pattern again.

WIRING DIAGRAM

Refer to the wiring diagram for the HV battery high-voltage line circuit.

Click here

CAUTION / NOTICE / HINT

CAUTION:


  • B004BJX

    Before the following operations are conducted, take precautions to prevent electric shock by turning the power switch off, wearing insulated gloves, and removing the service plug grip from HV battery.


    • Inspecting the high-voltage system

    • Disconnecting the low voltage connector of the inverter with converter assembly

    • Disconnecting the low voltage connector of the HV battery

  • B004C5R

    To prevent electric shock, make sure to remove the service plug grip to cut off the high voltage circuit before servicing the vehicle.

  • B0049VM

    After removing the service plug grip from the HV battery, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.

  • B004AZGC06
    *a Without waiting for 10 minutes

    After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.

    Click here

    Tech Tips

    Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

Note

After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

Click here

Tech Tips

If DTC P0ADD15 is output, the power switch cannot be turned on (READY).

PROCEDURE


  1. READ VALUE USING GTS (SMRG STATUS)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Data List / SMRG Status.


      Powertrain > Hybrid Control > Data List
      Tester Display
      SMRG Status

    4. Read the Data List.

      Standard
      Tester Display Condition Specified Condition
      SMRG Status Power switch on (IG) OFF

    5. Turn the power switch off.

      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (SMRG VOLTAGE) Click here

    OK

  2. CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU ASSEMBLY CONNECTOR)

    Result
    Proceed to
    OK
    NG

    1. B004C0XC01
      *A for LHD
      *B for RHD

      Check the connector connections and contact pressure of the relevant terminals for the hybrid vehicle control ECU assembly 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

  3. CHECK CONNECTOR CONNECTION CONDITION (FLOOR WIRE CONNECTOR)

    Result
    Result Proceed to
    OK A
    NG (The connector is not connected securely.) B
    NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C

    1. B004C8LN02

      Check the connection condition of the PX3 floor wire connector and the contact pressure of each terminal. Check the terminals for deformation, and check the connector for water ingress and foreign matter.

      Click here

      OK
      - The connector is connected securely.
      - The terminals are not deformed and are connected securely.
      - No water or foreign matter in the connector.
      Result
      Result Proceed to
      OK A
      NG (The connector is not connected securely.) B
      NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C

    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  4. CHECK CONNECTOR CONNECTION CONDITION (NO. 2 HV BATTERY PACK WIRE CONNECTOR)

    Result
    Result Proceed to
    OK A
    NG (The connector is not connected securely.) B
    NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C

    1. B0049XMN04

      Check the connection condition of the X119 No. 2 HV battery pack wire connector and the contact pressure of each terminal. Check the terminals for deformation, and check the connector for water ingress and foreign matter.

      Click here

      OK
      - The connector is connected securely.
      - The terminals are not deformed and are connected securely.
      - No water or foreign matter in the connector.
      Result
      Result Proceed to
      OK A
      NG (The connector is not connected securely.) B
      NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C

    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  5. CHECK CONNECTOR CONNECTION CONDITION (HV BATTERY JUNCTION BLOCK ASSEMBLY CONNECTOR)

    Result
    Proceed to
    OK
    NG

    CAUTION:

    Be sure to wear insulated gloves.


    1. Check that the service plug grip is not installed.

      Note

      After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the No. 10 HV battery shield panel.

      Click here

    3. B004A32

      Check the connector connections and contact pressure of the relevant terminals of the HV battery junction block assembly connector.

      Click here

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

    4. Install the No. 10 HV battery shield panel.

      Result
      Proceed to
      OK
      NG

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

    NG

    CONNECT SECURELY

  6. CHECK HARNESS AND CONNECTOR (SMRG VOLTAGE)


    1. Turn the power switch on (IG).

    2. B004A95C82
      *a

      Component with harness connected

      (Hybrid Vehicle Control ECU Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      P64-1 (SMRG) - Body ground Power switch on (IG) Below 1 V

    3. Turn the power switch off.

      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - BODY GROUND) Click here

    OK

  7. CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU ASSEMBLY CONNECTOR)

    Result
    Proceed to
    OK
    NG

    1. B004C0XC01
      *A for LHD
      *B for RHD

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

      Click here

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

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY Click here

    NG

    CONNECT SECURELY

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


    1. Disconnect the P64 hybrid vehicle control ECU assembly connector.

    2. B004AWVC13
      *a

      Front view of wire harness connector

      (to Hybrid Vehicle Control ECU Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P64-1 (SMRG) - Body ground Power switch off 25.0 to 59.0 Ω

    3. Reconnect the P64 hybrid vehicle control ECU assembly connector.

      Result
      Proceed to
      OK
      NG

    NG

    CHECK CONNECTOR CONNECTION CONDITION (FLOOR WIRE CONNECTOR) Click here

    OK

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

    CAUTION:

    Be sure to wear insulated gloves.


    1. Check that the service plug grip is not installed.

      Note

      After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the No. 10 HV battery shield panel.

      Click here

    3. B004A32N02

      Disconnect the z29 HV battery junction block assembly connector.

    4. Disconnect the P64 hybrid vehicle control ECU assembly connector.

    5. Turn the power switch on (IG).

    6. B004B0TC25
      *a

      Rear view of wire harness connector

      (to Hybrid Vehicle Control ECU Assembly)
      *b

      Front view of wire harness connector

      (to HV Battery Junction Block Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      P64-1 (SMRG) and z29-4 (SMRG) - Body ground and other terminals Power switch on (IG) Below 1 V

      Note

      Turning the power switch on (IG) with the hybrid vehicle control ECU assembly connector and the HV battery junction block assembly connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

    7. Turn the power switch off.

    8. Reconnect the P64 hybrid vehicle control ECU assembly connector.

    9. Reconnect the z29 HV battery junction block assembly connector.

    10. Install the No. 10 HV battery shield panel.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  10. CHECK CONNECTOR CONNECTION CONDITION (FLOOR WIRE CONNECTOR)

    Result
    Result Proceed to
    OK A
    NG (The connector is not connected securely.) B
    NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C

    1. B004C8LN02

      Check the connection condition of the PX3 floor wire connector and the contact pressure of each terminal. Check the terminals for deformation, and check the connector for water ingress and foreign matter.

      Click here

      OK
      - The connector is connected securely.
      - The terminals are not deformed and are connected securely.
      - No water or foreign matter in the connector.
      Result
      Result Proceed to
      OK A
      NG (The connector is not connected securely.) B
      NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C

    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  11. CHECK CONNECTOR CONNECTION CONDITION (NO. 2 HV BATTERY PACK WIRE CONNECTOR)

    Result
    Result Proceed to
    OK A
    NG (The connector is not connected securely.) B
    NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C

    1. B0049XMN04

      Check the connection condition of the X119 No. 2 HV battery pack wire connector and the contact pressure of each terminal. Check the terminals for deformation, and check the connector for water ingress and foreign matter.

      Click here

      OK
      - The connector is connected securely.
      - The terminals are not deformed and are connected securely.
      - No water or foreign matter in the connector.
      Result
      Result Proceed to
      OK A
      NG (The connector is not connected securely.) B
      NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.) C

    B

    CONNECT SECURELY

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  12. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - HV BATTERY JUNCTION BLOCK ASSEMBLY)

    CAUTION:

    Be sure to wear insulated gloves.


    1. Check that the service plug grip is not installed.

      Note

      After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the No. 10 HV battery shield panel.

      Click here

    3. B004A32N02

      Disconnect the z29 HV battery junction block assembly connector.

    4. Disconnect the P64 hybrid vehicle control ECU assembly connector.

    5. B004B0TC25
      *a

      Rear view of wire harness connector

      (to Hybrid Vehicle Control ECU Assembly)
      *b

      Front view of wire harness connector

      (to HV Battery Junction Block Assembly)

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      P64-1 (SMRG) - z29-4 (SMRG) Power switch off Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      P64-1 (SMRG) and z29-4 (SMRG) - Body ground and other terminals Power switch off 10 kΩ or higher

    6. Reconnect the P64 hybrid vehicle control ECU assembly connector.

    7. Reconnect the z29 HV battery junction block assembly connector.

    8. Install the No. 10 HV battery shield panel.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  13. CHECK HARNESS AND CONNECTOR (HV BATTERY JUNCTION BLOCK ASSEMBLY - BODY GROUND)

    Result
    Proceed to
    OK
    NG

    CAUTION:

    Be sure to wear insulated gloves.


    1. Check that the service plug grip is not installed.

      Note

      After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the No. 10 HV battery shield panel.

      Click here

    3. Disconnect the z29 HV battery junction block assembly connector.

    4. B004B6GC15
      *a

      Front view of wire harness connector

      (to HV Battery Junction Block Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      z29-3 (GND) - Body ground Power switch off Below 1 Ω

    5. Reconnect the z29 HV battery junction block assembly connector.

    6. Install the No. 10 HV battery shield panel.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  14. INSPECT HV BATTERY JUNCTION BLOCK ASSEMBLY (SMRG)

    CAUTION:

    Be sure to wear insulated gloves.


    1. Check that the service plug grip is not installed.

      Note

      After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.

    2. Remove the No. 10 HV battery shield panel.

      Click here

    3. Disconnect the z29 HV battery junction block assembly connector.

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

      B004B4CC97
      *a

      Component without harness connected

      (HV Battery Junction Block Assembly)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      z29-4 (SMRG) - z29-3 (GND) -40 to 80°C (-40 to 176°F) 25.0 to 59.0 Ω

    5. Reconnect the z29 HV battery junction block assembly connector.

    6. Install the No. 10 HV battery shield panel.

      Result
      Proceed to
      OK
      NG

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

    NG

    REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY Click here