I own a 2003 Vitz 1.0. Recently, its whole steering assembly was replaced and suspensions were restored too. After the work, car's ABS brakes are malfunctioning. Even on slight brake padel press, it randomly activates ABS brakes. I have scanned the car on OBD scanner, serviced ABS sensors still the issue remains. ABS doesnt kick in everytime, it happens randomly. And one more thing, car's front left tyre slips on hard braking which i guess is indicating that there is some issue on the left side. Should i visit Toyota Service shop or is there any other alternative.