SERVICE ACTION: HCU/LDC LOGIC IMPROVEMENT FOR P-DTC (SA484)
Page 2 of 7
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: SA484 Niro HEV/PHEV (DE HEV/PHEV) September 2021
To correct this condition, the ECU should be reprogrammed using the KDS
download, as described in this bulletin.
ROM ID INFORMATION TABLE:
Upgrade Event #563
To verify the vehicle is affected, be sure to check the Calibration Identification of the vehicle's ECM ROM ID
and reference the Information Table as necessary.
563. DE PE HEV/PHEV HCULDC P-DTC IMPROVEMENT
Confirm a fully charged battery (12.3 volts or higher is necessary) is used or utilize a fully
charged jump starter box connected to the battery.
• Ensure the KDS GDS is sufficiently charged at 60% or higher prior to reflash.
•
All ECU upgrades must be performed with the ignition set to the ‘ON’ position unless otherwise
stated.
• Damaged VCI II units should not be used and promptly replaced.
•
Be careful not to disconnect the VCI-II connected to the vehicle during the ECU upgrade
procedure.
• DO NOT start the engine during ECU upgrade.
• DO NOT turn the ignition key ‘OFF’ or interrupt the power supply during ECU upgrade.
•
When the ECU upgrade is completed, turn the ignition ‘OFF’ and wait 10 seconds before
• ONLY use approved ECU upgrade software designated for the correct application.
It is recommended to ALWAYS check the Electronic Parts Catalog (EPC) to locate the ECU Part
Number respective to Auto/Manual Mode ROM IDs. DO NOT reference the parts label affixed to
the ECU.
Before attempting an ECU upgrade on any Kia model, make sure to first determine whether the
applicable model is equipped with an immobilizer security system. Failure to follow proper
procedures may cause the PCM to become inoperative after the upgrade and any claims associated
with this repair may be subject to chargeback.
To Next Page
Loading...