PCBA function test tool for ECU of automobile electric power steering system

The invention discloses a PCBA function test tool for an ECU of an automobile electric power steering system, and the tool comprises a control box, a motor main shaft control device, and a positioning and clamping device which is used for positioning, clamping and fixing a PCBA assembly. The motor main shaft control device comprises a motor base, a motor, a main shaft assembly, a torque angle sensor arranged on the main shaft assembly, a lengthening shaft connected with the motor, and a magnet assembly which is connected with the lengthening shaft and is used for generating a magnetic field change effect with a magnetic angle sensor chip of the PCBA assembly during rotation. The control box is electrically connected with the motor main shaft control device, the motor main shaft control device is electrically connected with the PCBA assembly and the torque angle sensor, and the positioning clamping device is arranged on the motor base. According to the PCBA function test tool for the ECU of the automobile elec