BMW DTC P1B14 – Hybrid/EV Battery Pack Voltage Sense ‘E’ Circuit Low
DTC P1B14 meaning on BMW
DTC P1B14 on a BMW indicates an issue with the Hybrid/EV Battery Pack Voltage Sense ‘E’ Circuit being detected as low. This fault code is specific to the hybrid or electric vehicle system of the BMW.
BMW DTC P1B14 symptoms
Symptoms of DTC P1B14 on a BMW may include:
- Check Engine Light (MIL) illuminated
- Hybrid/EV system warning light on
- Reduced hybrid or electric drive performance
BMW DTC P1B14 causes
Possible causes of DTC P1B14 on a BMW include:
- Faulty voltage sensor in the battery pack
- Wiring or connection issues in the voltage sense circuit
- Hybrid/EV battery pack malfunction
BMW DTC P1B14 seriousness
The seriousness of DTC P1B14 on a BMW lies in the potential impact on the hybrid or electric drive system. Ignoring this fault code can lead to reduced efficiency or performance of the vehicle’s hybrid or electric components.
How to diagnose DTC P1B14 on BMW
To diagnose DTC P1B14 on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and related data
- Inspect the voltage sensor and wiring for any visible damage or corrosion
- Test the voltage sensor and circuit for proper operation
- Check the hybrid/EV battery pack for any internal faults
How to fix DTC P1B14 on BMW
To fix DTC P1B14 on a BMW, the following steps may be taken:
- Replace the faulty voltage sensor in the battery pack
- Repair any damaged wiring or connections in the voltage sense circuit
- If the battery pack is malfunctioning, it may need to be repaired or replaced
How to erase DTC P1B14 on BMW
To erase DTC P1B14 on a BMW, a mechanic can use a diagnostic scanner to clear the fault code after the underlying issue has been addressed and fixed. This will reset the system and turn off the warning lights.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.