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NEXON EV
X114H
DTC Troubleshooting Data
Version: 3.0
Date: 27-May-2020
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41
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.
P130023:- Low temperature shutdown
Overview:
ISO Code (If applicable)
P130023
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 value of temperature is lower than -40° C
Normal Operating Condition
If the temperature goes above -40 ° C
.
Probable Trouble Area
1. Low ambient temperature
2. DCDC internal sensor failure
3. Low coolant inlet temperature
Healing Condition
Ignition OFF wait till VCU sleeps & Ignition ON
Write up for
the 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-Check Points:-
a) Check the coolant level
b) Check the coolant system proper connection and make sure there is no leakage
c)
Check for the LV connector pins damage
LV Signal Connector
HV Battery
DCDC Converter
12V LV Battery