2. Check The TCS Switch

Remove the TCS switch.
Check for continuity between the terminals while operating the TCS switch.

Fig 1: Checking For Continuity Between Terminals While Operating TCS Switch (1 Of 2)
Courtesy of HYUNDAI MOTOR CO.

Fig 2: Checking For Continuity Between Terminals While Operating TCS Switch (2 Of 2)
Courtesy of HYUNDAI MOTOR CO.

Is there continuity between terminals 5 and 6 of TCS switch side connector (I47) with TCS switch ON?

Yes: Go to the next step.

No: Replace the TCS switch with new one and recheck.