Diagnosis Design Based on KWP2000 in Body Control Module

This article describes the KWP2000 protocol interface design in the body control module and the related information acquisition mode in vehicle body control module, using the MC33972 chip to multi-sample analog signal. The fault diagnosis will be known through KWP2000 bus according the sampling data after MCU judge error. The technology described in this article can be widely used in the design of vehicle electrical equipment.