What would make a grinding niose some times a clicking noise in front end when breaking

SOURCE: 2001 corolla parking brake light on . Rear brakes making a rubbing noise

I would think that your parking brake cables and/or the park brake pivots may be seized. It appears that your rear brakes are being kept on by one or both of the abovementioned problems.

SOURCE: front right wheel bearing and break pads

Nope. 90% chance its your caliper pins. the caliper is required to float. When you remover the caliper by the two pins or whatever your application they require lube. if one is bent or seized the caliper wont float, the pads or pad will continue to wear because the caliper wont return to "neutral" location when the piston no longer has pressure on it. locate these pins and lubricate them with a graphite grease or something like lubriplate or similar. if the pins are bent remove them and replace. they're pretty cheap. good luck

SOURCE: disabling faulty abs breaks. Will car still pass mot?

If there is only one sensor faulty you should be able to replace that one.If for any reason one abs wheel sensor cannot connect to the abs system reader it stopes working.It means your brakes working just as fine but the Anti Block System is not functioning anymore.Your car will certainly pass the mot without ABS.

SOURCE: Noise grinding from rear end

It sounds like your ring and pinion are worn, check your rear end fluid level. Not a cheap repair!!

SOURCE: I have a 94 Camry.

Hi R,
If I understand correctly the sound you're describing could be something known as 'pinking' It occurs when the ignition timing is too far advanced and can damage the engine. Make sure that you're using the correct octane rated fuel in your vehicle and thereafter take it for a tune. Whoever does it, should set the timing at 10 degrees BTDC. To set the timing correctly, open the diagnostic socket in the engine compartment which when standing facing the front of the car will be on your right and the vehicles left. Open up the cover and bridge between T and E1 (A small directory is inside the same cover, which will help you find the correct connections) Only when the bridge is connected can the ignition timing be set correctly. This should be carried out with a strobe timing light with the engine running.
Regards Johngee10