HYBRID BATTERY SYSTEM, Diagnostic DTC:P0A80-123

DTC Code DTC Name
P0A80-123 Replace Hybrid Battery Pack

DESCRIPTION

A284370E03

The hybrid vehicle control ECU controls the SOC (state of charge) of the HV battery at a constant level during driving. The HV battery is composed of 34 modules, and each module consists of six 1.2 V cells in series. The battery voltage sensor monitors battery block voltage at 17 locations. Each battery block is composed of 2 modules in a set.

C297251E02

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P0A80-123

Replace Hybrid Battery Pack

Voltage difference between battery blocks is larger than the specified value due to an internal malfunction of the HV battery.

(2 trip detection logic)

  • Battery voltage sensor

  • HV battery

Comes on

Master Warning Light:

Comes on
Table 1. Related Data List

DTC No.

Data List

P0A80-123

  • Battery Block Vol -V01 to V17

  • State of Charge (All Bat)

The following items can be helpful when performing repairs:

  • Data List

  • Ready Signal

  • Vehicle Spd

  • Accelerator Degree

  • Shift Sensor Shift Pos

  • Engine Revolution

  • Internal Resistance R01 to R17

  • Power Resource VB

  • Batt Pack Current Val

  • Auxiliary Battery Vol

  • Battery Low Time

  • DC Inhibit Time

  • SOC after IG-ON

  • Status of Charge Max

  • Status of Charge Min

  • DTC Clear Run Distance

  • Engine Run Time

  • Operation History Data

  • Main Battery Low Voltage

Tip:

  • This DTC can be stored after clearing DTCs and driving the vehicle for approximately 10 minutes. (As 2 trip detection logic is used, check for DTCs including pending DTCs.)

  • DTC P0A80-123 is stored when a malfunction is detected in the HV battery or battery voltage sensor. If the HV battery is malfunctioning, the malfunction may not be reproduced when the condition of the HV battery changes due to a difference in driving load (amperage), battery SOC and battery temperature. Therefore, use the freeze frame data when performing a repair.

    1. When the HV battery is malfunctioning:

      • - Voltage of 1 or a few battery blocks has dropped. (Voltage difference from that of the next block is 1 V or more.)

      • - Voltage of all battery blocks is output randomly with no certain pattern.

    3. When the battery voltage sensor is malfunctioning:

      • - Differences in battery block voltages have a certain pattern.

  • In order to ensure HV battery performance, appropriate cooling performance must be maintained. Perform the following items as necessary. If cooling performance has decreased and "Maintenance required for hybrid battery cooling parts at your dealer" is displayed on the multi-information display, make sure to perform the following items:

    • Make sure the air intake port is not blocked.

    • Make sure there are no gaps between the connecting parts of the ducts.

    • Clean the filter of the No. 1 or No. 2 hybrid battery intake duct.

      • Clear the DTCs to reset the learning values even if no DTCs are stored.

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)

    Click hereClick here

    Result

    Result

    Proceed to

    P0AFC-123 is not output.

    A

    P0AFC-123 is also output.

    B
    B

    GO TO DTC CHART (P0AFC-123)

    Click here

    A

  2. CHECK FREEZE FRAME DATA

    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 output DTCs.

      Powertrain > Hybrid Control > Trouble Codes

    5. Using the GTS, make a note of the freeze frame data item "Battery Block Vol -V01 to V17".

    6. Compare the freeze frame data item "Battery Block Vol -V01 to V17" values with those shown in the following combination tables.

      Table 2. Table 1

      Circuit A Battery Block

      Circuit B Battery Block

      Condition

      Battery Block Vol -V01 (VB1)

      Battery Block Vol -V02 (VB2)

      "Battery Block Vol -V01" - "Battery Block Vol -V02" = 0.3 V or more

      Battery Block Vol -V04 (VB4)

      Battery Block Vol -V03 (VB3)

      "Battery Block Vol -V04" - "Battery Block Vol -V03" = 0.3 V or more

      Battery Block Vol -V05 (VB5)

      Battery Block Vol -V06 (VB6)

      "Battery Block Vol -V05" - "Battery Block Vol -V06" = 0.3 V or more

      Battery Block Vol -V08 (VB8)

      Battery Block Vol -V07 (VB7)

      "Battery Block Vol -V08" - "Battery Block Vol -V07" = 0.3 V or more

      Battery Block Vol -V09 (VB9)

      Battery Block Vol -V10 (VB10)

      "Battery Block Vol -V09" - "Battery Block Vol -V10" = 0.3 V or more

      Battery Block Vol -V12 (VB12)

      Battery Block Vol -V11 (VB11)

      "Battery Block Vol -V12" - "Battery Block Vol -V11" = 0.3 V or more

      Battery Block Vol -V13 (VB13)

      Battery Block Vol -V14 (VB14)

      "Battery Block Vol -V13" - "Battery Block Vol -V14" = 0.3 V or more

      Battery Block Vol -V16 (VB16)

      Battery Block Vol -V15 (VB15)

      "Battery Block Vol -V16" - "Battery Block Vol -V15" = 0.3 V or more

      Battery Block Vol -V17 (VB17)

      Battery Block Vol -V14 (VB14)

      "Battery Block Vol -V17" - "Battery Block Vol -V14" = 0.3 V or more
      Table 3. Table 2

      Circuit A Battery Block

      Circuit B Battery Block

      Condition

      Battery Block Vol -V01 (VB1)

      Battery Block Vol -V02 (VB2)

      "Battery Block Vol -V02" - "Battery Block Vol -V01" = 0.3 V or more

      Battery Block Vol -V04 (VB4)

      Battery Block Vol -V03 (VB3)

      "Battery Block Vol -V03" - "Battery Block Vol -V04" = 0.3 V or more

      Battery Block Vol -V05 (VB5)

      Battery Block Vol -V06 (VB6)

      "Battery Block Vol -V06" - "Battery Block Vol -V05" = 0.3 V or more

      Battery Block Vol -V08 (VB8)

      Battery Block Vol -V07 (VB7)

      "Battery Block Vol -V07" - "Battery Block Vol -V08" = 0.3 V or more

      Battery Block Vol -V09 (VB9)

      Battery Block Vol -V10 (VB10)

      "Battery Block Vol -V10" - "Battery Block Vol -V09" = 0.3 V or more

      Battery Block Vol -V12 (VB12)

      Battery Block Vol -V11 (VB11)

      "Battery Block Vol -V11" - "Battery Block Vol -V12" = 0.3 V or more

      Battery Block Vol -V13 (VB13)

      Battery Block Vol -V14 (VB14)

      "Battery Block Vol -V14" - "Battery Block Vol -V13" = 0.3 V or more

      Battery Block Vol -V16 (VB16)

      Battery Block Vol -V15 (VB15)

      "Battery Block Vol -V15" - "Battery Block Vol -V16" = 0.3 V or more

      Battery Block Vol -V17 (VB17)

      Battery Block Vol -V14 (VB14)

      "Battery Block Vol -V14" - "Battery Block Vol -V17" = 0.3 V or more
      Tip:

      Make sure to compare Battery Block Vol -V17 to Battery Block Vol -V14 in accordance with the tables above.

      C297252E02
      Tip:

      When an internal malfunction occurs in the battery voltage sensor, this symptom (difference in voltage of 0.3 V or more for all 9 pairs of blocks) will occur.

      Result

      Result

      Proceed to

      All conditions in table 1 are met.

      A

      All conditions in table 2 are met.

      Other than above

      B

    7. Turn the power switch off.

    8. Disconnect the GTS from the DLC3.

    A

    REPLACE BATTERY VOLTAGE SENSOR

    Click here

    B

    REPLACE HV BATTERY

    Click here