intermittant electrical fault , help pleeease !!!

[viper2day]

Hi All
My Viper has developed and intermittent electrical fault that's driving me mad !!! hoping for some electrical wizard to guide me in the right direction
Had my Viper for a while and just about trouble free motoring , but recently electrical problems have emerged .most of the time all dashboard light out with no problem ,
but now the brake and abs came on ( indication of abs sensor fault , changed sensors , lights still come on ) but now i also get the red airbag light come on , when it does , i lose brake lights , indicators , blower fan , radio , mirrors and hazards only flash on one side , nothing seems to set this off , it just does it randomly ,but the car still drives normally , then suddenly all lights go out and back to normal
sorry electrics are not my strong point so not sure if any of these are linked in any way
hoping for the huge amount of knowledge here may help me . please any help of where to start would be very much appreciated
cheers all
Les
( have also posted on vca forums )

[viper2day]

thanks for reply
ok i think , same battery since i had car so probably 10 years old, but same every year , when i get car out after winter break , charge battery and drive it !!!!!!
cheers

[viper2day]

thanks guys, i will changed the battery , but curious if battery why would it be intermittent ????
anyone have preferences or model types on uk stocked batteries
cheers

[viper2day]

update :

swapped out battery , no difference , only thing now which might make things easier is at least its no longer seems to be intermittent , the dash lights are now permanantly on with all the same electrical faults , so at least i can start metering everything

Thanks again

[viper2day]

I FINALLY SORTED IT :-)

cheers everyone for all your comments and help ......... but at last SORTED !!!!!!!

It turned out to be a faulty ignition switch , the car started fine and drove perfectly but when the key returned to its position after starting the car the contacts were burnt so not always getting full contact ,hence no power to the auxiliary items that require power to work, windows , indicators, wipers, blower, brake lights etc
ordered new ignition switch , swapped ignition key cylinder , fitted new ignition switch and PERFECT !!!!!!! ONE HAPPY VIPER OWNER