hi ever since i got my saph 2wd the abs light comes on on the dash a couple of seconds after turning on the ignition and i can hear a single click from the glove box area when it comes on , also the brake pedal is very hard and the car has a tendancy to lock up the back wheels easier than the fronts when i break , anyone point me in the right direction cheers lads

 

The abs light is supposed to come on when first switching on, as well as the combined e/brake low fluid/pressure warning light, the click is the relay that switches the abs pump on to build the pressure used to help the brakes in use, as it doesn't have a conventional servo, you should hear a pump buzzing for around 20 seconds or so when first switching on, this will go off when sufficient pressure has been made, then the e brake light goes off, unless e brake is on, the abs light goes out within about 1 second also of the pressure light.
A heavy pedal and locking rear wheels suggest the abs is not working at all, do you hear the pump running when first turning on, this(abs pump motor) runs in position 1(and 2) so can hear it easy before engine starting.
tabetha

 

ya i can hear the abs pump priming itself i swapped around the purple relays 4 pin ones and made no difference and cleaned the connections on most of the plugs that i could see ? , ya the abs light comes on when i turn on ignition and turns off when i sart it then a couple of seconds the light flicks back on ??

 

It's not unusual for it to flick on for a sec or two after starting, but then go off.
Check the water content of the fluid, or just change it, use DOT4, NOT 5.
tabetha

 

but it stays on all the time once started ,,. would the fluid really make that much difference ,if i could disconnect the abs properly i would , its just that the back brakes come on a bit harder that the front ones when i hit the brakes hard

 

Crap/old brake fluid can contain a large amount of moisture, this moisture can attack things that normally would rust like valves in the abs unit, theyu don't normally rust as the presence of brake fluid with no air doesn't support corrosion, add in moisture though, and it's a different ball game, and costs very little to find out.
Moisture in the brakes is bad, and my metre shows a warning at just 1.5% of needing changing within 6 months, anything over 3% is disaster.
ABS is also part of the mot, and I would imagine invalidate insurance cover if removed from a car the insurer expects to have this safety feature.
Can't say 100% it is that, but worth a try ?
tabetha