Ford Fiesta Encore 1996, 1.3. brake problem

Check this video:
https://www.youtube.com/watch?v=pyewHFmrYgc
It may help you.

Guess you should replace your door lock?
There're still many ford fiesta door locks on sale.
https://idealprice.today/product/Door-lock-Ford-Fiesta

run the fault codes
indicates a problem in the ambient temp or BARO sensors

It sounds like if this is a car with the brake interlock, meaning the car will not shift from park unless the brake is pressed, there is a malfunction there, some are electronic and it may not be getting power to it especially if there are other warning lights on the dash. It would help if you could give more details, like which lights are on. Most cars with a mechanical interlock will have a cable you can adjust either at the brake cable or at the shifter.

Try charging the battery!

this is normal to hold brakes while selecting.no problem I think.

jack it up and put a stand under the lower track control and check the ball joints ,then a crowbar in the inner bushes ,also check teh tyres for deformation ,does it have two tyres the same make and same tread pattern on the front wheels

no. you need to tighten the hand brake cable, or if the is tightened to the max already then you need to replace it with a new one.

brake fluid low will be indicated with alight when the car is switched on (the same light that is one when the handbrake is applied will stay on when the hand brake is released.

Anyways, the hand brake is cable operated. This is normal as with time the steel cable stretches since it is put under enormous stresses when engaged.

It sounds very likely to be the ICV

there is a resistor that controls voltage to the motor. this resistor is defective. i couldn't tell you the location

this could just be a fuse check them first