1982 BMW 733i Brake Light Don't Go Out

The Brake indicator light on my 7331 will not go out. I bleed the brakes, checked the fluid and inspected the rotors/pads/calipliers and very thing seems to be ok. I'm wondering if the bomb needs replacing becuase the steering is tight or is there other things I should be checking also. Please help.

Thanks

The e23 used the power steering pump to provide a power boost to the brakes. There is a round reservour of pressure and switches that turn on the brake light if the the power steering pressure is less than good.

Later,