P0B30 OBD-II: Hybrid Battery "D" Voltage Unstable
P0B30 Severity
Should you fix P0B30 yourself?
Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.
Proper diagnosis will save you time and money on unnecessary repairs.
Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.
What causes OBD-II fault code P0B30?
The high voltage battery is composed of many individual battery cells. The Battery Energy Control Module (BECM) monitors all the cells in the high voltage battery pack to make sure they are all contributing equally to the high voltage system. If one cell is determined to be unequally contributing, code P0B30 will be set.
Need a P0B30 diagnosis? Trust our experts.
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OBD II Fault Code
- OBD II P0B30
OBD-II Code High voltage system may not operate is defined as a Hybrid Battery "D" Voltage Unstable
The high voltage battery is composed of many individual battery cells. The Battery Energy Control Module (BECM) monitors all the cells in the high voltage battery pack to make sure they are all contributing equally to the high voltage system. If one cell is determined to be unequally contributing, code P0B30 will be set.
High voltage system may not operate Symptoms
- High voltage system may not operate
Common Problems That Trigger the P0B30 Code
- Battery Energy Control Module (BECM) failure
- High voltage battery assembly failure
- Wiring issue
Ask our experts about P0B30.
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