Megane ABS, STOP, Service and handbrakelights

Have replaced </SPAN> control arms, tie rods, CV joints and wheelbearings on my Megane. When all this was done a strange problem appeared. At 80-90 km / h (engine braking coming down from higher speed) the instrument panel beeps and</SPAN> ABS, STOP, Handbrake and service lights come on. Almost at the same speed every time. ABS function falls completely away. When i turn off the car and start again everything gets back to normal and the ABS works fine. Have gone through every single ABS sensor around the car with thorough cleaning. Around the same time that I changed all the parts i also fixed the handbrake. The wires had dropped out in the center console. I removed the brake calipers and went through them. Has anyone on the forum encountered similar problems and is there an ingenious solution? Grateful for any help. </SPAN>