2001 ford focus brakelights not working

The brake and turn signal lamps are controlled by what Ford calls a multifunction switch [the blinker control on the column]. If the lamp works on turn signal but not on brake, it definitely is the multifunction switch. If neither work, it still could be the switch or a bad wire.
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You should have the computer scanned for trouble codes for the warning light.
As for the tail light, I would check the socket with a test light or meter to see if the socket is getting power for that circuit. The brake-turn signal circuit of the bulb is different from the tail light circuit.

The turn signal and brake lights are controlled by the turn signal switch.
You did not mention parking lights so I will assume they work.

Could be a faulty turn signal switch or a wiring problem between the dash and the rear of the van.
Do the hazard flashers work on all four corners ?

Did you change the turn signal switch?

1. Check the fuse make sure it is not busted and also use a designated amp only.
2. Check the bulb and the wires also.
   

yes it sounds like the turn signal switch is defective, the brake lights go through that switch as well.

I have a 2000 ford focus no brake lights. with the brake lights the transmission would not go into drive .replaced the brake light switch checked fuse replaced turn signal switch with no results then i moved onto the wiper switch and replaced it as much to my supp rise it fixed the problems

the problem is most likely in the turn signal switch. the power for the left and right brake lights goes through the turn signal switch, but power for the center mount comes straight from the brake light switch. this allows the brake light to be turned of so the turn signal can operate as they use the same filimant in the bulb.

When this happens the problem is most likely the multi-funtion switch aka turn signal switch. Check to see if the 3rd brakelight comes on when the brake pedal is pushed. If so replace the MFS. The 3rd brakelight in late 80's fords bypasses the turnsignal switch.

Yes, did. It turned out to be a short in the wires that powered the center brake light. This short caused power to be refed back through the brakelight switch and through the GEM. Once this was fixed everything started working again, including the cruise control.