My car didn't come with a Sovy tank on the brake MC. I had to replace the MC (with a Cardone unit) anyway.
Strangely, the wiring (red/black) for the brake warning light appears in the front of the car, via the passenger side wheel well grommet, but it isn't in the wiring bundle: it's a separate wire, which has been snipped. (The S2 Federal wiring diagram shows the wire separate from the bundle - so perhaps this is normal.)
Can anyone shed light on this? My car is 0701R, built 1970: would it have the Sovy from the start?
Having a brake fluid warning would be nice - I wonder if there are aftermarket switches that can replace the cap on my Cardone?