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. 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 20 modules, and each module consists of six 1.2 V cells in series. The battery smart unit monitors battery block voltage at 10 locations. Each battery block is composed of 2 modules in a set.

A004EKSE28
*1 Battery Block
*2 Battery Module
*3 Battery Smart Unit
A004ELBE03
DTC No. INF Code DTC Detection Condition Trouble Area
P0A80 123

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

(2 trip detection logic)

  • HV battery

  • Battery smart unit
Related Data List
DTC No. Data List
P0A80-123

  • Battery Block Vol -V01 to V10

  • State of Charge (All Bat)

The following items can be helpful when performing repairs:



Tech Tips


  • 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 smart unit. If the HV supply battery is malfunctioning, the malfunction may not be reproduced when the condition of the HV supply battery changes due to 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.

    2. When the battery smart unit is malfunctioning:


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

  • If "Maintenance required for Traction battery cooling parts. See owner's manual." is displayed on the multi-information display*1, or go to service warning light in the combination meter assembly illuminates*2, 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 mesh.


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


    • *1: for TFT Meter Type

    • *2: except TFT Meter Type

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 ignition switch to ON (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Check and record any HV system DTCs, INF codes and freeze frame data.

    5. Read output DTCs Click here.

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

    6. Turn the ignition switch off.

    7. Disconnect the GTS from the DLC3.


    B

    GO TO DTC CHART (P0AFC-123) Click here

    A

  2. CHECK BATTERY SMART UNIT


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Read output DTCs.

    5. Using the GTS, make a note of the freeze frame data item "Battery Block Vol - V01 to V10".

    6. Compare the freeze frame data item "Battery Block Vol - V01 to V10" 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
      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
      A004F5GE04

      Tech Tips

      When an internal malfunction occurs in the battery smart unit, this symptom (difference in voltage of 0.3 V or more for all 5 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 ignition switch off.


    A

    REPLACE BATTERY SMART UNIT Click here

    B

    REPLACE HV BATTERY Click here