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NEXON EV
X114H
DTC Troubleshooting Data
Version: 3.0
Date: 27-May-2020
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70
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.
P220616:- Low boost voltage
Overview:
ISO Code (If applicable)
P220616
Customer Symptom
NA
Fault Effect (On Vehicle)
OBC will stop charging HV battery
Lamp Status (If Any)
NA
DTC Detection Condition
OBC internal boost voltage is < 200V
Normal Operating Condition
OBC internal boost voltage higher than 200V
Probable Trouble Area
1. Boost circuit in OBC is failed.
2. Voltage sensor inside OBC is failed.
3. A/D circuit in OBC is failed.
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.
Pre-Check Points:
a) Check AC input and DC output connections for damage (connectors, terminals bending & oxidation of pins)
b) Check LV Battery voltage to be in range (7.5V - 14V)
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 P220616, is
present?
Replace the OBC.
Repair complete
On-Board charger
230V AC supply
HV Battery
LV signal connector