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NEXON EV
X114H
DTC Troubleshooting Data
Version: 3.0
Date: 27-May-2020
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43
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.
P22E017:- DC Overvoltage shutdown
Overview:
ISO Code (If applicable)
P22E017
Customer Symptom
NA
Fault Effect (On Vehicle)
OBC will stop charging HV battery
Lamp Status (If Any)
NA
DTC Detection Condition
This DTC gets logged if OBC Output DC voltage is greater than
445±2V
Normal Operating Condition
OBC output voltage is less than 445±2V
Probable Trouble Area
1. Wrong HV battery connected
2. OBC giving voltage more than maximum limit.
3. Voltage Sensor error in OBC
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 the OBC DC output connector (HC105) for damage (connectors, terminals bending & rusting of pins)
TroubleShooting:-
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
P22E017, is
present?
Replace OBC
Repair complete
DTC
’
s
confirmation:-
After rectification, ensure the following points by referring OBC parameters using TML diagnostic tool before
handing over to customer.
a) Check whether the OBC can respond to the vehicle charging command by observing the Charge ON indicator
lamp on the cluster.
On-Board charger
230V AC supply
HV Battery
LV signal connector