4WD Problem !!!

[concept]

Hello,

I have a serious problem with my R33 V-Spec which is :

4WD, ABS, A-LSD lights on the dash are on !!

(All these lights appears at once, i think they are related to each other somehow!!)

there is no power to the front at all.. i tried every possible thing (wire tracing, fluid level, broken pipes, fuse) but it seems that everything is fine while the 4WD not working ... im ready to start over again and again but could someone tells any ideas of where to check or what do i have to do ?? i really need help !!

Note: the attessa-pro system (in the back) is flashing a code... one blink every 3 seconds and its contonuisly so can someone tells me what does that error code means ??

Thanks

[blind_elk]

have you replaced tyres recently?

Check tyre pressures.

[concept]

checking tires pressure is one thing but ....

as long as i start on the engine the 4wd,Abs,-a-lsd are on

means : 4wd, ABS they turn off for one second and turn on again ( after i start on the engine ) .. i think that the 4WD is working but there is something stopping or forcing it to not work .

lets assume that your right and the problem is with the tyres pressure or the size .. how come that they turn on as soon as i start on the engine ( ATTESSA-PRO ) wont know that before i move the car for a while !!!

the lights are on as soon i start on the engine .. it should be a connector which is not plugged properly or a broken wire .. ( I think ) !!! so could you tell me which place is good to start tracing to find the problem ???

thanks