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.

P1208 - 1C:- BMS voltage difference second level alarm - circuit voltage out of range

Overview:

ISO Code

P1208 - 1C

Customer Symptom

Reduced vehicle performance

Fault Effects (On Vehicle)

1.Derate during driving

2.Reduced current during charging

Lamp Status (If Any)

HV Fault on cluster

Fault occurrence scenario

(

In the order of probability

)

During all vehicle operations

Normal Operating Condition

No fault

Probable Trouble Area

Internal to battery pack

Healing Condition

Vehicle slow charging over next few ignition cycles

System Details:

Cell voltages are detected by the BMS internally and the value of the maximum and minimum cell voltages

is populated in diagnostics through DID parameter

3415

and

3417

Preliminary Checks:

1) Ensure the vehicle is parked and not in charging

2) Ensure that the vehicle is in ignition ON condition

Inspection Method:

Connect the tool and communicate to the battery pack as instructed through APPENDIX-C

Read DTC information of DTC ID –

P1208-1C

Rectification Action:

1) If DTC is appearing in real time, clear DTC information through service tool

2) If DTC is not appearing in real-time but has only occurred before, store the snapshot data.

3) Clear the DTC information on the respective DTC ID.

DTC’s confirmation:

After clearing, ensure the following points by referring to BMS DTC list.

1) Read DTC ID –

P1208-1C

for the existence of DTC information.

2) If DTC still exists, reflash the battery pack using the service tool with the latest release SW

available in PLM database.

3) Read DTC ID –

P1208-1C

for the existence of DTC information post flashing.

4) If DTC still exists, the HV battery pack component has to be replaced as instructed by the

respective ECU replacement guide

Component Location & Image;Connector Location; Connector View & Information: -

APPENDIX-A