Kalyan

I drive 2102 RX 350.My steering is replaced Lexus after an accident. Some one hit my car at the center of my right side wheel and on recommendation of Lexus whole set right including tie rod , ECM is changed in January by Lexus. After this I drove a 1500 kms. Today I went shopping and returned back to car after 3 hrs. On starting the car it is showing check power sterring and turning off. I tried 5,6 times and it is showing check engine and battery signs are showing up. What could be the reason?