HYBRID CONTROL SYSTEM, Diagnostic DTC:P30004B

DTC Code DTC Name
P30004B Hybrid/EV Battery Control System Over Temperature

DESCRIPTION

The hybrid vehicle control ECU monitors its internal operation and detects the following malfunction.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P30004B Hybrid/EV Battery Control System Over Temperature

The HV battery temperature becomes too high due to a malfunction in the HV system.

(1 trip detection logic)

  • Hybrid vehicle control ECU

  • HV battery

  • Battery voltage sensor

 Does not come on

Master Warning Light:

Comes on
Related Data List
DTC No. Data List
P30004B

  • Hybrid Battery Temperature 1 to 3

  • Hybrid Battery Cooling Fan Intake Air Temperature 1

  • Ambient Temperature

  • Hybrid Battery Current

  • Hybrid Battery SOC

  • Hybrid Battery Cooling Fan 1 Drive Status

  • Hybrid Battery Cooling Fan

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 (IG) and turn the GTS on.

  6. Drive the vehicle for approximately 10 minutes according to the freeze frame data items "Vehicle Speed", "Hybrid Battery Temperature 1 to 3", "Hybrid Battery Cooling Fan Inhaling Air Temperature", "Ambient Temperature" and "Hybrid Battery Current".

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

  8. 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.

CAUTION / NOTICE / HINT

CAUTION:

When disposing of an HV battery, make sure to return it through an authorized collection agent who is capable of handling it safely. If the HV battery is returned via the manufacturer specified route, it will be returned properly and in a safe manner by an authorized collection agent.

PROCEDURE


  1. 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 for DTCs.


      Powertrain > Hybrid Control > Trouble Codes
      Result
      Result Proceed to
      Only P30004B is output A
      Other than above B

    5. Turn the power switch off.


    B

    GO TO DTC CHART (HYBRID CONTROL SYSTEM) Click here

    A

  2. CLEAN NO. 1 HV BATTERY INTAKE FILTER


    1. B004Q31C05
      *a Intake Port

      Check the HV battery cooling system intake port for blockage.

      Tech Tips

      If anything is blocking the HV battery cooling system intake port, remove it.

    2. Clean the No. 1 HV battery intake filter.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK FREEZE FRAME DATA (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. Read the freeze frame data of DTC P30004B.


      Powertrain > Hybrid Control > Trouble Codes

      Note

      Although freeze frame data is recorded before and after a DTC is stored, for this step it is only necessary to read the freeze frame data recorded before "0s" (when the DTC was stored).

      B004QC1C02
      *a Freeze Frame Data Recorded
      *b DTC Stored
      *c Time
      Result
      Result Proceed to
      Other than below A
      The sum of the value of each hybrid battery block voltage ("Hybrid Battery Block 1 to 11 Voltage") is less than the value of "VL-Voltage before Boosting" by 10 V or more. B

    5. Turn the power switch off.


    B

    REPLACE BATTERY VOLTAGE SENSOR Click here

    A

  4. CHECK FREEZE FRAME DATA (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. Read the freeze frame data of DTC P30004B.


      Powertrain > Hybrid Control > Trouble Codes

      Note

      Although freeze frame data is recorded before and after a DTC is stored, for this step it is only necessary to read the freeze frame data recorded at "0s" (when the DTC was stored).

      Result
      Result Proceed to
      Other than below A
      The value of any of "Hybrid Battery Temperature 1 to 3" is 80°C or more. B

    5. Turn the power switch off.


    B

    GO TO STEP 8 Click here

    A

  5. READ VALUE USING TECHSTREAM (DATA LIST)


    1. Apply the parking brake and secure the wheels using chocks.

    2. Connect the GTS to the DLC3.

    3. Turn the power switch on (READY).

    4. Enter the following menus: Powertrain / Hybrid Control / Data List.


      Powertrain > Hybrid Control > Data List
      Tester Display
      Hybrid Battery Temperature 1
      Hybrid Battery Temperature 2
      Hybrid Battery Temperature 3

    5. According to the display on the GTS, read the Data List and check that the value of each "Hybrid Battery Temperature 1 to 3" is 40°C or less.

      Tech Tips

      If the value of any of "Hybrid Battery Temperature 1 to 3" is more than 40°C, turn the power switch off and wait until the values to decrease to 40°C or less before continuing this procedure.

    6. Enter the following menus: Powertrain / Hybrid Control / Data List.


      Powertrain > Hybrid Control > Data List
      Tester Display
      Hybrid Battery Block 1 Voltage
      Hybrid Battery Block 2 Voltage
      Hybrid Battery Block 8 Voltage
      Hybrid Battery Block 9 Voltage

    7. According to the display on the GTS, read the Data List and check the value of each "Hybrid Battery Block 1, 2, 8 and 9 Voltage" with the power switch on (IG).

      B004PPDC02
      *a Hybrid Battery Block 1 Voltage *b Hybrid Battery Block 2 Voltage
      *c Hybrid Battery Block 3 Voltage *d Hybrid Battery Block 4 Voltage
      *e Hybrid Battery Block 5 Voltage *f Hybrid Battery Block 6 Voltage
      *g Hybrid Battery Block 7 Voltage *h Hybrid Battery Block 8 Voltage
      *i Hybrid Battery Block 9 Voltage - -
      Result
      Result Proceed to
      Other than below A
      The difference between the lowest and highest HV battery block voltage is 0.3 V or more. B

    8. Turn the power switch off.


    B

    GO TO STEP 8 Click here

    A

  6. READ VALUE USING TECHSTREAM (DATA LIST)


    1. Apply the parking brake and secure the wheels using chocks.

    2. Connect the GTS to the DLC3.

    3. Turn the power switch on (READY).

    4. Enter the following menus: Powertrain / Hybrid Control / Data List.


      Powertrain > Hybrid Control > Data List
      Tester Display
      Hybrid Battery Temperature 1
      Hybrid Battery Temperature 2
      Hybrid Battery Temperature 3

    5. According to the display on the GTS, read the Data List and check that the value of each "Hybrid Battery Temperature 1 to 3" is 40°C or less.

      Tech Tips

      If the value of any of "Hybrid Battery Temperature 1 to 3" is more than 40°C, turn the power switch off and wait until the values to decrease to 40°C or less before continuing this procedure.

    6. Enter the following menus: Powertrain / Hybrid Control / Data List.


      Powertrain > Hybrid Control > Data List
      Tester Display
      Hybrid Battery Block 3 Voltage
      Hybrid Battery Block 4 Voltage
      Hybrid Battery Block 5 Voltage
      Hybrid Battery Block 6 Voltage
      Hybrid Battery Block 7 Voltage

    7. According to the display on the GTS, read the Data List and check the value of each "Hybrid Battery Block 3 to 8 Voltage" with the power switch on (IG).

      B004OT9C02
      *a Hybrid Battery Block 1 Voltage *b Hybrid Battery Block 2 Voltage
      *c Hybrid Battery Block 3 Voltage *d Hybrid Battery Block 4 Voltage
      *e Hybrid Battery Block 5 Voltage *f Hybrid Battery Block 6 Voltage
      *g Hybrid Battery Block 7 Voltage *h Hybrid Battery Block 8 Voltage
      *i Hybrid Battery Block 9 Voltage - -
      Result
      Result Proceed to
      Other than below A
      The difference between the lowest and highest HV battery block voltage is 0.3 V or more. B

    8. Turn the power switch off.


    A

    END

    B

    REPLACE HYBRID VEHICLE CONTROL ECU Click here

  7. REPLACE BATTERY VOLTAGE SENSOR

    Tech Tips

    Click here

    Result
    Proceed to
    NEXT

    NEXT

    REPLACE HV BATTERY Click here

  8. REPLACE HYBRID VEHICLE CONTROL ECU

    Tech Tips

    Click here

    Result
    Proceed to
    NEXT

    NEXT

    REPLACE HV BATTERY Click here