12V Charging Battery Problem

Aly Diagnostician Congo City, Congo Posted   Latest   Edited  
Unsolved
High Voltage - Hybrid & Electric Vehicles
Electrification
2014 Land Rover Range Rover HSE 3.0L (V) 8-spd (8HP70)
P0B3C — Hybrid/EV Battery Voltage Sense "A" Circuit Range/Performance
P0B3C-62
12V Battery Not Charging

Hi,

i have this rangerover sport l…km) with problem on the 12v charging system.

you can see fault code on the attachment.

plz advice.

thanks

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Matt Technician
Lawrence, Massachusetts
Matt Default
 

I can't find much info on this vehicle. I don't think they sold it here in the US. I believe it has a ZF mild-hybrid transmission with the hybrid battery mounted somewhere in the floor. P0B3C is indicating an issue with one of the voltage sensors for the high voltage battery. What are the vehicle symptoms? You indicated there is a 12 volt charging problem. I don't know this for a fact but the…

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Matt Technician
Golden Valley, Minnesota
Matt Default
   

Ive seen something similar on a Jaguar F-type with auto start/stop, turned out that the relay switching center for the 2ndary battery, used to isolate voltage spike thru electrical components during a start event, had slightly loose cable connections. May have nothing to do with this vehicle, but I thought I'd throw it out there since I imagine this vehicle has auto start events and may have a…

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William Diagnostician
Austin, Texas
William Default
 

The secondary battery is for the start/stop system. It is located in the right rear of the load space area. See the attached file for a brief explanation of the system. It is possible you just have a failing secondary battery.

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Korrawit Owner/Technician
Mukdahan, Thailand
Korrawit Default
 

Hi, have you solve the problem? I have the same dtc. P0B3C-62 Hybrid Battery Voltage Sense A Circuit Range/Performance - Signal compare failure Hybrid electric vehicle battery pack internal failure - Difference between cell supervisor circuit module voltage and cell supervisor circuit sum of cells is greater than a calibratable threshold P0B3C-04 Hybrid Battery Voltage Sense A Circuit…

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Menaka Engineer
Yakkala, Sri Lanka
Menaka Default
 

hi there I also got the same problem , did you able to fix it ?

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Shafraz Service Advisor
Colombo 05, Sri Lanka
Shafraz Default
 

Hi, After 3 months of diagnosis and researches i have rectified this 3L Diesel hybrid Battery problem. Now i have the recepe to fix this malfunction. So far have fixed more than 10. All are running with same battery :) First was fixed June 2019. contact me privately

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