Hyundai — Eps signal glowing and steering hard after servicing

Address:

Krishnagiri, Tamil Nadu, 635109

My car ka 51 p2774 given for regular sevice @ hmc hosur hyundai authorized service center. During servicing they done wiring dressing and no eps fault before servicing.

Now after driving 3 days, eps signal start glowing, again car left to sort issue, dealers told ecu issue after keeping vehicle 3 days for rectification. They charged rs 1700 without changing ecu apart from first service cost of rs 7800.
I told dealer that eps issue started after servicing, but they told to change costly ecu, which is unfair