749 / 801
NEXON EV
X114H
DTC Troubleshooting Data
Version: 3.0
Date: 27-May-2020
`
76
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.
P130030:- Output Over Current
Overview:
ISO Code (If applicable)
P130030
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 output current of DC DC Converter is greater
than 235A
Normal Operating Condition
The output current of DC DC Converter is less than 235A
Probable Trouble Area
1. Sensor Faults
2. DCDC output short circuit
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 DCDC Converter output Connection (positive and ground) for damage (connectors, terminals bending &
oxidation)
b) Check for insulation resistance at the output of DCDC Converter (should be >500M ohms)
c) Check for design intended LV battery
LV Signal Connector
HV Battery
DCDC Converter
12V LV Battery