TECHNICAL SERVICE BULLETIN: SERVICE ACTION: EPS DTC JUDGEMENT LOGIC IMPROVEMENT SOFTWARE UPGRADE (SA409) - This bulletin provides the procedure to apply improved Diagnostic Trouble Code (DTC) judgement logic for the Electronic Power Steering (EPS) on some 2020MY Soul (SK3) vehicles, produced from November 15, 2018 through October 8, 2019, which requires a software upgrade. Install the improved logic of the EPS using the KDS ECU Upgrade function as described in this bulletin.
