Monitor GDS Data

WARNING: This page is about a different car, the 2018 Hyundai Accent. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON & Engine OFF.
Connect GDS to Data Link Connector (DLC).
Select "Diagnostic Trouble Codes (DTCs)"mode and monitor "DTC Status" parameter.
Clear recorded DTC using GDS.
Ignition switch OFF ↔ Ignition switch ON 2~3 times and Select "Diagnostic Trouble Codes (DTCs)"mode and monitor "DTC Status" parameter.
Is the DTC present?

YES

PCM/TCM's ROM or DATA is changed by reprogram illegally.
Substitute with a known-good PCM/TCM and check for proper operation. If the problem is corrected, replace PCM/TCM and then go to "Verification of Vehicle Repair " procedure.

NO

Fault is intermittent caused by poor contact of PCM/TCM and DTC was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair as necessary and go to "Verification Vehicle Repair " procedure.

CAUTION: This code is set when PCM/TCM's ROM or DATA is changed by reprogram illegally.