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 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 34 modules, and each module consists of six 1.2 V cells in series. The battery smart unit monitors battery block voltage at 17 locations. Each battery block is composed of 2 modules in a set.

DTC No.	INF Code	DTC Detection Condition	Trouble Area
P0A80	123	Difference in voltage between battery blocks is larger than the standard (2 trip detection)	HV battery Battery smart unit

Tech Tips

P0A80-123 will not be set unless the vehicle is driven for approximately 10 minutes after clearing the DTC.

MONITOR DESCRIPTION

The battery smart unit, which monitors the voltage of the battery blocks, determines that malfunction has occurred if a voltage difference between the battery blocks exceeds the standard. When the malfunction detection condition is satisfied, the power management control ECU will illuminates the MIL and set a DTC.

MONITOR STRATEGY

Related DTCs	P0A80 (INF 123): Battery cell malfunction
Required sensors / components	Main: Battery voltage sensor inside battery smart unit Sub: Battery current sensor, battery temperature sensor
Frequency of operation	Continuous
Duration	TMC's intellectual property
MIL operation	TMC's intellectual property
Sequence of operation	None

TYPICAL ENABLING CONDITIONS

The monitor will run whenever the following DTCs are not present	TMC's intellectual property
Other conditions belong to TMC's intellectual property	-

TYPICAL MALFUNCTION THRESHOLDS

TMC's intellectual property

-

COMPONENT OPERATING RANGE

Battery smart unit

DTC P0A80 (INF 123) is not detected

CONFIRMATION DRIVING PATTERN

Connect the Techstream to the DLC3.
Turn the power switch on (IG) and turn the Techstream on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the power switch off.
Turn the power switch on (READY) and turn the Techstream on.
Perform a universal trip.
With the select lever in N, leave the vehicle until SOC drops to 30 %.

Tech Tips

Although DTC P3000 (INF 388) may be stored if the SOC drops to 20 % or lower, this is not a malfunction.
Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
Check that permanent DTCs are cleared.
Tech Tips
- If the permanent DTC is not cleared, repeat steps 6 and 7.
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTC is output, the system is normal.

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

CHECK DTC OUTPUT (HYBRID CONTROL)

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

Read output DTCs Click here.

Result

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

Turn the power switch off.
Disconnect the Techstream from the DLC3.

B

GO TO DTC CHART (P0AFC-123) Click here

A

CHECK BATTERY SMART UNIT

Ensure the safety of the areas in front and at the back of the vehicle.
Connect the Techstream to the DLC3.
Turn the power switch on (READY).
Enter the following menus: Powertrain / Hybrid Control / Data List / Battery block Vol - V01 to V17.
Fully warm up the engine and turn the air conditioning off.
Firmly depress the brake pedal with your left foot.
Move the select lever to D.
Record each battery block voltage from the data list (Battery block Vol -V01 to V17) while fully depressing the accelerator pedal.

Compare the battery block voltages (Battery block Vol -V01 to V17) between the even and odd number groups in each combination shown in the table below.

Odd Number Group	Even Number Group	Battery Block Voltages to be Compared
Battery block Vol - V01	Battery block Vol - V02	V01 - V02
Battery block Vol - V03	Battery block Vol - V04	V03 - V04
Battery block Vol - V05	Battery block Vol - V06	V05 - V06
Battery block Vol - V07	Battery block Vol - V08	V07 - V08
Battery block Vol - V09	Battery block Vol - V10	V09 - V10
Battery block Vol - V11	Battery block Vol - V12	V11 - V12
Battery block Vol - V13	Battery block Vol - V14	V13 - V14
Battery block Vol - V15	Battery block Vol - V16	V15 - V16
Battery block Vol - V17	Battery block Vol - V14	V17 - V14

Check the difference between each pair of battery block voltages.

Result

Result	Proceed to
Difference in voltage of all 9 pairs of blocks is 0.3 V or more.	A
Other than above.	B

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 9 pairs of blocks) will occur.

Turn the power switch off.
Disconnect the Techstream from the DLC3.

B

REPLACE HV BATTERY Click here

A

REPLACE BATTERY SMART UNIT Click here

HYBRID BATTERY SYSTEM, Diagnostic DTC:P0A80-123