Hybrid Battery Control System

DTC P0A1F BATTERY ENERGY CONTROL MODULE

CIRCUIT DESCRIPTION

DTC Detection Condition:

For the purpose of calculating the SOC (state of charge) of the HV battery and ensuring safety in the event of malfunction in the HV battery assembly, the battery ECU provides the following control functions:
- SOC calculation
The battery ECU calculates the SOC by estimating the charging and discharging amperage and monitoring other values.
- Cooling fan control
The battery ECU controls the battery blower assembly in order to protect the HV battery assembly from the heat that is generated during charging and discharging. By maintaining a stable temperature, it promotes the effective operation of the HV battery assembly.
- HV battery assembly malfunction monitoring
If the battery ECU detects malfunction, it protects the HV battery assembly by limiting or stopping the charging or discharging of the HV battery in accordance with the temperature or voltage of the HV battery assembly.

MONITOR DESCRIPTION

Monitor Strategy:

Typical Enabling Conditions:

Typical Malfunction Thresholds:

Component Operating Range:

If the battery ECU detects an internal malfunction in the ECU itself, it illuminates the MIL and sets a DTC.

INSPECTION PROCEDURE

REPLACE BATTERY ECU ASSY