HYBRID BATTERY SYSTEM, Diagnostic DTC:P0A80-123

DTC Code DTC Name
P0A80-123 Replace Hybrid Battery Pack

DESCRIPTION

The HV battery uses nickel metal-hydride batteries and does not require external charging. The hybrid vehicle control ECU assembly controls the SOC (state of charge) of the HV battery at a constant level during driving. The HV battery is composed of 28 modules, and each module consists of six 1.2 V cells in series. The battery voltage sensor monitors battery block voltage at 14 locations. Each battery block is composed of 2 modules in a set.

A01SF78N10
*1 Battery Block
*2 Battery Module
*3 Battery Voltage Sensor
A01SFJ6E07
DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0A80-123 Replace Hybrid Battery Pack Difference in voltage between battery blocks is larger than the standard (2 trip detection)

  • HV battery

  • Battery voltage sensor

 Comes on Comes on
Related Data List
DTC No. Data List
P0A80-123

  • Battery Block Vol -V01 to V14

  • State of Charge (All Bat)

Tech Tips


  • DTC P0A80-123 will not be set unless the vehicle is driven for approximately 10 minutes after clearing the DTC. (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 HV battery changes due to difference in the 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 are dropped. (Voltage difference from that of next block is 1 V or more.)

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

    2. When the battery voltage sensor is malfunctioning:


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


  • If "Maintenance required for hybrid battery cooling parts at your dealer." is displayed on the multiinformation display, perform the following procedures.


    • Make sure the air intake port is not blocked.

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

    • Clean the battery cooling blower assembly filter.


      • Afterwards, clear the DTCs to reset the learning values even if no DTCs are stored.

INSPECTION PROCEDURE

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)

    Result
    Result Proceed to
    P0AFC-123 is not output. A
    P0AFC-123 is also output. B

    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
      Result
      Result Proceed to
      P0AFC-123 is not output. A
      P0AFC-123 is also output. B

    5. Turn the power switch off.

    6. Disconnect the GTS from the DLC3.


    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 V14".

    6. Compare the freeze frame data item "Battery Block Vol -V01 to V14" values with those shown in the following combination tables.

      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
      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
      A01SFTXE01

      Tech Tips

      When an internal malfunction occurs in the battery voltage sensor, this symptom (difference in voltage of 0.3 V or more for all 7 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