The invention relates to an arrangement for reading off the position of the gear lever in a gear selector in a vehicle, in which a sensor arrangement includes a first sensor component and a plurality of second sensor components that can interact with the first sensor component to detect the position of the first sensor component. The first sensor component is arranged to move with the gear lever to read off the position of the first sensor component in relation to the plurality of second sensor components, where the first sensor component can cover at least two of the second sensor components. Further, a detected position of the first sensor component can be relayed to a control device, which is configured to evaluate the presence of faults in the device.