ECU Logic Improvement for DTC PO3OX (SA285)
This bulletin provides the procedure to improve the logic of the Electronic Control Unit (ECU) on some 2017MY Forte (YDm) vehicles equipped with 2.0L MPI engine, produced from May 30, 2016 to February 22, 2017, which may experience a malfunction indicator lamp illumination with DTC PO3OO, P0301, P0302, PO303, or PO304.
The procedure involves reprogramming the ECU using the KDS download, and verifying the ROM ID using the table provided in the bulletin.
Important Notes:
A fully charged battery is necessary before ECU upgrade can take place, and the ignition key must be in the ‘ON’ position during the upgrade.
Do not start the engine during ECU upgrade, and do not turn the ignition key ‘OFF’ or interrupt the power supply during the upgrade.
Before attempting an ECU upgrade, make sure to first determine whether the particular model is equipped with an immobilizer security system.
Manual:
Download: 2017 KIA Forte (YDm) Technical Service Bulletin
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