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NEXON EV
X114H
DTC Troubleshooting Data
Version: 3.0
Date: 27-May-2020
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13
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.
P229038:- CP Test point Frequency out is error
Overview:
ISO Code (If applicable)
P229038
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 CP test point frequency is not in the range of
(950Hz~1050Hz)
Normal Operating Condition
CP test point frequency is in the range of (950Hz~1050Hz)
Probable Trouble Area
1. Incorrect CP frequency from Charging Gun.
2. Trigger circuit in Charging Gun is failed.
3. Receiver 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 High voltage supply voltage of 230V, 50Hz to charge the HV battery.
The control pilot (CP)
signal has two functions. First is to submit the maximum allowed input current from the charging station to the vehicle,
second is to monitor the proper ground connection between car and charging station
.
Pre-Check Points:
KL 30
12V LV supply to OBC
KL 31
LV/Chassis ground to OBC
a) Check for proper rated charging gun.
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 P229038
is present?
Go to step 2
Repair complete.
2
Change the charging gun.
Fault code
P229038 is present?
Replace the OBC.
Replace the gun and
repair complete.
On-Board charger
230V AC supply
HV Battery
LV signal connector