[modern] 94 XJ40 brake pad light comes on all the time - pads and wires fine

Hello Everyone

Need some assistance on where to start looking for the source of this fault.

Every time i touch the brake peddle (even lightly), the brake warning light
comes on.

Have checked the pads, their wires and the sensor and these are fine.

Where would start to look next?

thanks very much


94 XJ40
142ooo km