The P0B14: Hybrid Battery Pack Voltage Sense “B” Circuit refers to a fault in the voltage sensing circuit “B” of the hybrid battery pack. This issue could be caused by a malfunction in the voltage sense circuit, wiring problems, or a fault in the control module. If left unresolved, it can lead to improper voltage monitoring, affecting the performance and safety of the hybrid battery system.
P0B14 – Quick Overview
Code | Information |
---|---|
Meaning | P0B14: Hybrid Battery Pack Voltage Sense “B” Circuit |
Is it serious? | Yes, faulty voltage sensing can lead to incorrect battery management and potential performance issues. |
Possible causes | – Faulty voltage sense B circuit – Wiring issue – Control module fault |
How to diagnose? | – Test voltage sense B circuit – Inspect wiring and connections – Check control module functionality |
P0B14 Meaning
The P0B14 code is set when the voltage sense circuit “B” in the hybrid battery pack detects an issue, typically related to faulty wiring, a defective voltage sensor, or a malfunctioning control module. This can result in incorrect voltage monitoring and could negatively impact the hybrid system’s operation.
Step-by-step diagnostic guide
Action | Description | Tools Needed |
---|---|---|
Check for Other Codes | Use an OBD-II scanner to detect additional codes that might provide more insight into the issue. | OBD-II Scanner |
Test Voltage Sense B Circuit | Use a multimeter or diagnostic tool to test the voltage sense B circuit and compare it to manufacturer specifications. | Multimeter, Diagnostic Tool |
Inspect Wiring and Connections | Inspect all related wiring and connections for damage, corrosion, or disconnection. | Flashlight, Multimeter, Safety Gloves |
Check Control Module Functionality | Test the control module to ensure it is properly managing the voltage sense circuit. Replace if necessary. | Diagnostic Tool |
Clear the Code and Test Drive | After performing repairs, clear the code and take the vehicle for a test drive to ensure the issue is resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
Recheck for Codes | Rescan the vehicle after the test drive to confirm the P0B14 code does not return. | OBD-II Scanner |

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Hi, I am Juraj “Yuri” Lukacko. I got frustrated by unhelpful and scammy mechanics, so I decided to learn everything about car diagnostics myself. I test dozens of new car diagnostic tools every month along with learning new strategies to fix and customize cars. About Juraj Lukacko (Yuri)