NEXON EV SERVICE MANUAL

NEXON EV

X114H: DTC Troubleshooting Document for BMS

Version: 3.0

Date: 01

July 2020

This document must not be used in anyway, such as copying and redistributing to third parties, without the consent of author.

INTRODUCTION

The HV battery pack in

Nexon EV

project is built-in with a Battery Management System (BMS) which

communicates in real time with the powertrain e-VCU for ensuring safe and reliable operation of the

powertrain system during vehicle operations like drive and charging. The BMS is located internal to the

sealed battery pack and is only accessible through the LV connector that is present on the front face of

the battery pack as referred in the picture below. This female connector is coupled with the male

connector coming from the vehicle LV harness.

IMPORTANT INFORMATION

Any internal repairs to the HV battery pack

cannot

be performed at the TML service station and any such

activity may void the battery pack’s warranty. The only removable component from the battery pack

assembly represented by 8060R group in PLM is during the SW troubleshooting is the Manual Service

Disconnect (MSD) switch

MSD disconnection instructions are provided in the APPENDIX-B below.

Under ideal and intended operating conditions for all the HV components, the battery pack is not

supposed to show any DTCs during any of the vehicle operations. Powertrain e-VCU is already

incorporated with safety locks the ensure that the battery pack operates within the intended

limitations. The DTCs are likely to be triggered when the battery pack of

Nexon EV

has been operated in

scenarios that are not design-inteded. The operation manual covers the conditions for intended usage,

handling and storage of the battery pack.

PURPOSE OF DOCUMENT

The purpose of this document is to serve as a detailed guide for servicing of HV battery pack for

Nexon

X114H project for reaching conclusions of diagnostics and troubleshooting in case the vehicle

inwarded for servicing has battery faults.