P0B14 OBD-II: Hybrid Battery Pack Voltage Sense "B" Circuit

P0B14 Severity

Urgent

Should you fix P0B14 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.

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What causes OBD-II fault code P0B14?

The hybrid battery pack is composed of many individual battery cells (sometimes over 300 cells). Those cells are then grouped together. each group has a voltage monitor attached to it that tells the battery control module (or hybrid powertrain control module) the available voltage for each cell group. If a cell group's voltage is less than what it should be, code P0ABA is set.

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OBD II Fault Code

  • OBD II P0B14

OBD-II Code Diagnostic Trouble Code is defined as a Hybrid Battery Pack Voltage Sense "B" Circuit

The hybrid battery pack is composed of many individual battery cells (sometimes over 300 cells). Those cells are then grouped together. Each group has a voltage monitor attached to it that tells the battery control module (or hybrid powertrain control module) the available voltage for each cell group. If a cell group's voltage is less than what it should be, code P0ABA is set.

Common Problems That Trigger the P0B14 Code

  • Battery contactor assembly failure
  • Battery Energy Control Module (BECM) failure
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Other OBD-II Codes

P0B13: Hybrid Battery Pack Current Sensor "A"/"B" CorrelationP0B12: Hybrid Battery Pack Current Sensor "B" Circuit Intermittent/ErraticP0B11: Hybrid Battery Pack Current Sensor "B" Circuit HighP0B10: Hybrid Battery Pack Current Sensor "B" Circuit LowP0B0F: Hybrid Battery Pack Current Sensor "B" Circuit Range/PerformanceP0B0E: Hybrid Battery Pack Current Sensor "B" CircuitP0B0D: AUXILIARY Transmission Fluid Pump Motor Control ModuleP0B0C: AUXILIARY Transmission Fluid Pump Hydraulic LeakageP0B0B: AUXILIARY Transmission Fluid Pump Motor Supply Voltage CircuitP0B0A: AUXILIARY Transmission Fluid Pump Motor Supply Voltage CircuitP0B09: AUXILIARY Transmission Fluid Pump Motor Supply VoltageP0B08: AUXILIARY Transmission Fluid Pump Motor Phase W Current HighP0B15: Hybrid Battery Pack Voltage Sense "B" Circuit Range/PerformanceP0B16: Hybrid Battery Pack Voltage Sense "B" Circuit LowP0B17: Hybrid Battery Pack Voltage Sense "B" Circuit HighP0B18: Hybrid Battery Pack Voltage Sense "B" Circuit Intermittent/ErraticP0B19: Hybrid Battery Pack Voltage Sense "C" CircuitP0B1A: Hybrid Battery Pack Voltage Sense "C" Circuit Range/PerformanceP0B1B: Hybrid Battery Pack Voltage Sense "C" Circuit LowP0B1C: Hybrid Battery Pack Voltage Sense "C" Circuit HighP0B1D: Hybrid Battery Pack Voltage Sense "C" Circuit Intermittent/ErraticP0B1E: Hybrid Battery Pack Voltage Sense "D" CircuitP0B1F: Hybrid Battery Pack Voltage Sense "D" Circuit Range/PerformanceP0B20: Hybrid Battery Pack Voltage Sense "D" Circuit Low