I changed my struts and left the ignition on which nearly killed the battery. The car started and briefly Had service engine soon warning. That went out but ABS Braking/Driving warning stayed on. It says Brake and Drive Control Ststems malfunction. REduced Braking and Driving Stability. Please help me.

 

Since you drained the battery, IMHO, the first thing you should do is RECHARGE the battery fully.

 

thank you for your help. I charged the battery and warnings remain. What else could I check

 

While changing the struts, you may have disconnected the wheel sensors (on one of the wheels) and you forgot to reconnect it.
Or, one of the wheel sensor is damaged during the strut work.

 

Thank you so much pcy. I checked the wheel sensors and the mechanic left one of the sensors out of the sensor hole on wheel hub. Put it in and drove less than 25 meters and all warnings went out. Thank you so much.

 

good call!