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NEXON EV
X114H: DTC Troubleshooting Document for BMS
Version: 3.0
Date: 01
th
July 2020
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.
P1214 - 98:- BMS battery charging temperature high first level alarm - component or system
over temperature
Overview:
ISO Code
P1214 - 98
Customer Symptom
NA
Fault Effects (On Vehicle)
None
Lamp Status (If Any)
HV Fault on cluster
Battery temperature high tell tale
Fault occurrence scenario
(
In the order of probability
)
1. Charging
2. Vehicle Braking
3. All vehicle scenarios
Normal Operating Condition
No fault
Probable Trouble Area
Battery Cooling system
Software bug in VCU
Software bug in BMS
Healing Condition
System Details:
Battery cell temperature is detected by the BMS internally and the value of the maximum temperature is
populated in diagnostics through DID parameter
3409
.
Preliminary Checks:
1)
Check the coolant level of battery cooling system.
2)
Ensure the proper functioning of the battery cooling system.
3)
Ensure that the E-compressor is working . Check BCS pump and chiller valve functioning etc.
Inspection Method:
Connect the tool and communicate to the battery pack as instructed through APPENDIX-C
Read DTC information of DTC ID –
P1214 - 98
Rectification Action:
1)
If DTC is appearing in real time, clear DTC information through service tool
2)
If DTC is not appearing in real-time but has only occurred before, store the snapshot data.
3)
Clear the DTC information on the respective DTC ID.
DTC’s confirmation:
After clearing, ensure the following points by referring to BMS DTC list.
1)
Read DTC ID –
P1214 – 98
for the existence of DTC information.
2)
If DTC still exists, reflash the battery pack using the service tool with the latest release SW available
in PLM database.
3)
Read DTC ID –
P1214 – 98
for the existence of DTC information post flashing.