P0B42 OBD-II: Hybrid Battery Voltage Sense "B" Circuit Low

P0B42 Severity

Urgent

Should you fix P0B42 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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P0B42 Summary Find a Repair Shop P0B42 Details Ask RepairPal CarGenius Other OBD-II Codes

What causes OBD-II fault code P0B42?

The High Voltage Battery Pack consists of many mini-batteries connected together. If the High Voltage Control Module has detects an issue with one or more of the battery packs that make up the High Voltage Battery Assembly, the High Voltage Control Module will set code P0B42.

OBD II Fault Code

OBD II P0B42

OBD-II Code Increased fuel consumption is defined as a Hybrid Battery Voltage Sense "B" Circuit Low

Increased fuel consumption Symptoms

Increased fuel consumption

Common Problems That Trigger the P0B42 Code

High voltage battery connection failure
High voltage battery assembly failure
Wiring issue

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Other OBD-II Codes

P0B41: Hybrid Battery Voltage Sense "B" Circuit Range/Performance P0B40: Hybrid Battery Voltage Sense "B" Circuit P0B3F: Hybrid Battery Voltage Sense "A" Circuit Intermittent/Erratic P0B3E: Hybrid Battery Voltage Sense "A" Circuit High

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OBD II Fault Code

OBD II P0B42

OBD-II Code Increased fuel consumption is defined as a Hybrid Battery Voltage Sense "B" Circuit Low

Increased fuel consumption Symptoms

Increased fuel consumption

Common Problems That Trigger the P0B42 Code

High voltage battery connection failure
High voltage battery assembly failure
Wiring issue

P0B42 OBD-II: Hybrid Battery Voltage Sense "B" Circuit Low

Should you fix P0B42 yourself?

What causes OBD-II fault code P0B42?

Need a P0B42 diagnosis? Trust our experts.

OBD II Fault Code

Increased fuel consumption Symptoms

Common Problems That Trigger the P0B42 Code

Ask our experts about P0B42.

Other OBD-II Codes

OBD Code Resources

OBD II Fault Code

Increased fuel consumption Symptoms

Common Problems That Trigger the P0B42 Code