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NEXON EV
X114H
DTC Troubleshooting Data
Version: 3.0
Date: 27-May-2020
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71
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.
P130029:- Input over voltage
Overview:
ISO Code (If applicable)
P130029
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 intput voltage is higher than 460V
Normal Operating Condition
If the input voltage is less than 460V
Probable Trouble Area
1. Wrong HV battery connected
2.
Voltage sensor is failed
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 the DCDC Converter DC input connector for damage
b)
Check the voltage of HV battery.
LV Signal Connector
HV Battery
DCDC Converter
12V LV Battery