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NEXON EV
X114H
DTC Troubleshooting Data
Version: 3.0
Date: 27-May-2020
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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.
TroubleShooting:-
Flow Diagram or table format for diagnosing the fault code
Step no
.
Description
Check Point
if YES
if NO
1
Remove the 12V LV battery negative terminal.
After a minute connect the 12V LV battery
negative terminal & "Ignition Switch" to ON
position.
Crank and wait for 2 minutes.
Check for the fault code.
Fault code
P130029 is
present?
Go to step 2
Repair complete.
2
Check for HV battery over voltage fault
Is fault code is
present?
Go to HV battery
trouble shooting
document
Replace DCDC Converter
DTC’s confirmation:-
After rectification, ensure the following points by referring DCDC parameters using TML diagnostic tool before handing over to
customer.
a) DCDC converter charging LV battery in the range of 8V to 16V
Schematic Block Diagram:-
LV Service Schematic:-