Inspection Procedure 9: The skid control/TCL system cannot be disabled when ASC OFF switch is pressed for 3 seconds or more to turn the system OFF: Operation

WARNING: This page is about a different car, the 2015 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.

ETACS-ECU terminal No. 15 is grounded by pressing ASC OFF switch. The ON/OFF state of ASC OFF switch is transferred from ETACS-ECU to ASC-ECU via CAN bus line.
When the ASC OFF switch is pressed for 3 seconds or more, the ASC system turns OFF.
When the ASC OFF switch is pressed and held for 15 seconds or more, ASC turns ON.