| DTC Code | DTC Name |
|---|---|
| P1A6017 | Hybrid/EV Battery Stack 2 Cell Circuit Voltage Above Threshold |
| P31AA17 | Hybrid/EV Battery Stack 1 Cell Circuit Voltage Above Threshold |
DESCRIPTION
The HV battery is composed of 84 individual 3.7 V cells connected in series. The battery voltage sensor monitors the voltage of each cell and informs the battery ECU assembly of any HV battery malfunctions. The battery ECU assembly stores this DTC.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P1A6017 | Hybrid/EV Battery Stack 2 Cell Circuit Voltage Above Threshold | The voltage of any cell of the No. 2 HV supply stack sub-assembly has exceeded the threshold. (1 trip detection logic) |
|
Comes on | Master Warning Light: Comes on |
| P31AA17 | Hybrid/EV Battery Stack 1 Cell Circuit Voltage Above Threshold | The voltage of any cell of the No. 1 HV supply stack sub-assembly has exceeded the threshold. (1 trip detection logic) |
|
Comes on | Master Warning Light: Comes on |
| DTC No. | Data List |
|---|---|
| P1A6017 | Hybrid Battery Cell 1 to 84 Voltage |
| P31AA17 |
The following items can be helpful when performing repairs:
- Data List
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WIN Control Limit Power
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Hybrid Battery Current
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Hybrid Battery Voltage
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Hybrid Battery SOC
CONFIRMATION DRIVING PATTERN
After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
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Connect the GTS to the DLC3.
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Turn the power switch on (IG) and turn the GTS on.
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Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
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Turn the power switch off and wait for 2 minutes or more.
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Turn the power switch on (IG) and turn the GTS on.
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Drive the vehicle on urban roads for approximately 10 minutes.
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Enter the following menus: Powertrain / HV Battery / Utility / All Readiness.
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Check the DTC judgment result.
Tip:
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If the judgment result shows NORMAL, the system is normal.
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If the judgment result shows ABNORMAL, the system has a malfunction.
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If the judgment result shows INCOMPLETE, perform driving pattern again.
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CAUTION / NOTICE / HINT
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Before the following operations are conducted, take precautions to prevent electric shock by turning the power switch off, wearing insulated gloves, and removing the service plug grip from HV battery.
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Inspecting the high-voltage system
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Disconnecting the low voltage connector of the inverter with converter assembly
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Disconnecting the low voltage connector of the HV battery
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To prevent electric shock, make sure to remove the service plug grip to cut off the high voltage circuit before servicing the vehicle.
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After removing the service plug grip from the HV battery, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
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*a Without waiting for 10 minutes After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.
Tip:Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly and the electric vehicle charger assembly.
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Make sure to insulate the high-voltage connectors and terminals of the HV battery with insulating tape after removing it.
If the HV battery stored without insulating the connectors and terminals, electric shock or fire may result.
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*a Dealer *b Battery Collection Agent 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.
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Accidents such as electric shock may result if the HV battery is disposed of improperly or abandoned. Therefore, make sure to return all HV batteries through an authorized collection agent.
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Before returning the HV battery, make sure to perform a recovery inspection.
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Before returning the HV supply stack sub-assembly, make sure to perform a recovery inspection.
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Make a note of the output DTCs as some of them may be necessary for recovery inspection of the HV battery and HV supply stack sub-assemblies.
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After removing the HV battery, keep it away from water. Exposure to water may cause the HV battery to produce heat, resulting in a fire.
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
PROCEDURE
- Click here
CHECK DTC OUTPUT (HV BATTERY)
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Connect the GTS to the DLC3.
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Turn the power switch on (IG).
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Enter the following menus: Powertrain / HV Battery / Trouble Codes.
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Check for DTCs.
- Powertrain > HV Battery > Trouble Codes
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Result Result Proceed to "P0C3000 or P31B300" is not output. A "P0C3000 or P31B300" is also output. B -
Turn the power switch off.
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- Click here
CHECK DTC
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Check the DTCs that were output when the vehicle was brought to the workshop.
Result Result Proceed to "P1A6017" is also output. A "P31AA17" is also output. B
- A
REPLACE NO. 2 HV SUPPLY STACK SUB-ASSEMBLYClick here
- B
REPLACE NO. 1 HV SUPPLY STACK SUB-ASSEMBLYClick here
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- Click here
CHECK DTC
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Check the DTCs that were output when the vehicle was brought to the workshop.
Result Result Proceed to "P1A6017" is also output. A "P31AA17" is also output. B
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- Click here
REPLACE NO. 2 HV SUPPLY STACK SUB-ASSEMBLY
Result Proceed to NEXT
- NEXT
REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLYClick here
- NEXT
- Click here
REPLACE NO. 1 HV SUPPLY STACK SUB-ASSEMBLY
Result Proceed to NEXT
- NEXT
REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLYClick here
- NEXT