The device is designed to test steering racks without a control unit (usually for Japanese car brands).
In such cars the EPS control unit is installed separately and is connected to the steering rack through a regular wiring which is often impossible to dismantle from the car. In most cases, when the power steering fails, the specialists dismantles and sends only the steering rack itself for diagnosis and repair. Diagnostics with MS561 is available only with the appropriate control unit.
MS550 substitutes the native control unit and diagnoses the electrical part of the steering rack, namely: electric motor, position sensor, torque sensor. The testing can be conducted both automatically and manually. MS550 also shows the current parameters from the sensors which helps to calibrate them.
The manufacturer: MSG Equipment