DTC P0B2A (125)
DTC P0B2A (125): HV Battery Pack B Voltage High
General Description
If the individual cell maximum voltage received from the cell voltage sensor exceeds a specified value for a specified duration, the battery condition monitor module B detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | - |
| DTC Type | One drive cycle, MIL on, POWER SYSTEM indicator on, 12 volt battery charging system indicator off |
Enable Conditions
| Condition | ||
|---|---|---|
| Vehicle condition | Vehicle ON mode, or Plug-in charge on, or Plug-in quick charge on | |
Malfunction Threshold
One of the following conditions occurs:
- Maximum cell voltage is 4.5 V or more for at least 1.5 seconds.
- Maximum cell voltage is 4.36 V or more for at least 1.7 seconds.
- Maximum cell voltage is 4.28 V or more for at least 3.4 seconds.
Possible Cause
- Battery pack internal failure
- Inverter internal failure
- Battery condition monitor module B internal failure
- PCM internal failure
Confirmation Procedure
Operating Condition
Turn the vehicle to the ON mode, and wait at least 10 seconds.
With the HDS
None.
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, the MIL and the POWER SYSTEM indicator comes on and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the battery condition monitor module B memory.
Conditions for clearing the DTC
The MIL and the POWER SYSTEM indicator are cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL and the POWER SYSTEM indicator, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command.