Brief component description

The SZL (steering column switch cluster) consists of the following components:

• Analyzer module: The evaluation electronics analyses the signals from the components and send them as CAN messages on the F- CAN. The evaluation electronics is installed on a printed circuit board.
• Steering angle sensor: The steering angle sensor uses an encoded disc to optically sense the amount of lock applied to the steering wheel. The data is read in and calculated by the evaluation electronics. The data is sent directly to the DSC control unit.
• Steering column switch: the positions of all steering column stalk switches are determined optically. Button presses and turning/pressing of the thumbwheels are sensed via switch mats.
• Coil spring cassette: The coil spring cassette has the task of transferring electrical signals to or from the steering wheel.

The SZL (steering column switch cluster) has no fault memory of its own. All the fault data of the SZL is stored in the DSC control unit.