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P0B12 Severity
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.
The High Voltage Battery Pack has a current sensor mounted to the negative battery cable. This sensor tells the Battery control module if the battery pack is being charged or discharged. If the Battery control module detects a malfunction in the sensor's circuit, it will set code P0B12.
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OBD-II Code Battery current sensor failure is defined as a Hybrid Battery Pack Current Sensor "B" Circuit Intermittent/Erratic
The High Voltage Battery Pack has a current sensor mounted to the negative battery cable. This sensor tells the Battery control module if the battery pack is being charged or discharged. If the Battery control module detects a malfunction in the sensor's circuit, it will set code P0B12.