HYBRID BATTERY SYSTEM, Diagnostic DTC:P0A80-123

DTC Code	DTC Name
P0A80-123	Replace Hybrid Battery Pack

DESCRIPTION


*1	Battery Block
*2	Battery Module
*3	Battery Voltage Sensor

The power management control ECU controls the SOC (state of charge) of the HV battery at a constant level during driving. The HV battery is composed of 32 modules, and each module consists of six 1.2 V cells in series. The battery voltage sensor monitors battery block voltage at 16 locations. Each battery block is composed of 2 modules in a set.

DTC No.	DTC Detection Condition	Trouble Area
P0A80-123	An internal malfunction of the HV battery is detected and the voltage difference between battery blocks is larger than the specified value. (2 trip detection logic)	HV battery Battery voltage sensor

Related Data List
DTC No.	Data List
P0A80-123	Battery Block Vol -V01 to V16 State of Charge (All Bat)

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 voltage sensor. 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.

When the HV battery is malfunctioning:

- Voltage of 1 or more of the 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.

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 and No. 6 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

CHECK DTC OUTPUT (HYBRID CONTROL)

Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

Read output DTCs.

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

Turn the power switch off.

GO TO DTC CHART (P0AFC-123) Click here

CHECK FREEZE FRAME DATA

Connect the GTS to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
Read output DTCs.
Using the GTS, make a note of the freeze frame data item "Battery Block Vol -V01 to V16".

Compare the freeze frame data item "Battery Block Vol -V01 to V16" 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
Battery Block Vol - V16 (VB16)	Battery Block Vol - V15 (VB15)	"Battery Block Vol - V16" - "Battery Block Vol - V15" = 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
Battery Block Vol - V16 (VB16)	Battery Block Vol - V15 (VB15)	"Battery Block Vol - V15" - "Battery Block Vol - V16" = 0.3 V or more

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 8 pairs of blocks) will occur.

Result

Result	Proceed to
All conditions in table 1 are met.	A
All conditions in table 2 are met.	A
Other than above	B

Turn the power switch off.

REPLACE BATTERY VOLTAGE SENSOR Click here

REPLACE HV BATTERY Click here