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NEXON EV
X114H
DTC Troubleshooting Data
Version: 3.0
Date: 27-May-2020
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58
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.
P229398:- High temperature shutdown
Overview:
ISO Code (If applicable)
P229398
Customer Symptom
NA
Fault Effect (On Vehicle)
OBC will stop charging HV battery
Lamp Status (If Any)
NA
DTC Detection Condition
If the internal temperature of OBC is greater than 105
℃
Normal Operating Condition
If the internal temperature of OBC is less than 105
℃
Probable Trouble Area
1.
Temperature sensor failure in OBC.
2.
High coolant temperature
Healing Condition
Disconnect the gun and connect back after VCU sleep
Write up for
the system:-
The on-board charger (OBC) takes AC input and converts it to direct current to charge a HV battery. The LV supply of OBC
is from 12V battery. It requires AC HV supply voltage of 230V, 50Hz to charge the HV battery. Without the LV supply
charging is not possible.
Pre-Check Points:
a) Check whether the coolant level in traction coolant tank is above the minimum level marking.
b) Check the radiator slow fan, radiator fast fan and traction coolant pump are working normally.
c) Check for any pinching in traction cooling system.
Trouble Shooting:-
Flow Diagram or table format for diagnosing the fault code
Step no
.
Description
Check Point
if YES
if NO
1
Connect the Charging Gun & switch
ON the AC supply. check for the fault
code.
Fault code P229398 is
present?
Go to step 2
Repair complete
2
Check for the proper functioning of
Traction coolant pump.
Is Traction coolant
pump is functioning
properly?
Go to DTC
Troubleshooting
document of Traction
coolant pump.
Replace the OBC
DTC
’
s
confirmation:-
After rectification, ensure the following points by referring OBC parameters using TML diagnostic tool before
handing over to customer.
On-Board charger
230V AC supply
HV Battery
LV signal connector