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NEXON EV
X114H
DTC Troubleshooting Data
Version: 3.0
Date: 27-May-2020
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81
Author: K Tejaswini Manasa/ Navya Krishnan/Gaurav Jha
Copyright © TATA MOTORS Ltd.
This document must not be used in anyway, such as copying and redistributing to third parties, without the consent of author.
P130031:- Input Over Current
Overview:
ISO Code (If applicable)
P130031
Customer Symptom
NA
Fault Effect (On Vehicle)
DCDC Converter is not charging LV battery. Vehicle stops when LV
battery is completely drained
Lamp Status (If Any)
NA
DTC Detection Condition
This DTC gets logged if the input current of DC DC is greater than 20A
Normal Operating Condition
Input current of DC DC is with in the range of less than 20A
Probable Trouble Area
1. Output short circuit or overload
2. DCDC output current sensor failure.
Healing Condition
Ignition OFF wait till VCU sleeps & Ignition ON
Write up for
the
related
system:-
HV DCDC Converter converts DC high voltage to low voltage to charge 12V battery. The conversion starts with wakeup and
enable signal to DCDC converter from VCU.
Pre-CheckPoints:
a) Check for insulation resistance at the input of DC DC conveter (should be >500M ohms)
b) Check for proper connections of DC DC Converter HV input cables
c) Check for design intended HV battery
LV Signal Connector
HV Battery
DCDC Converter
12V LV Battery