my au s1 futura developed a strange problem, my wife tried to start it and it would light up the dash lights but wouldn't crank so i checked the usual starter motor and inhibiter switch no problem there so i went to pop the boot to get a tool and had no electrics to the boot and no electrics to the power windows so i checked all fuses and relays that i could see and all ok , i was then standing back scratching my head i heard a noise similar to a fuel pump sound (but wasn't that) and my electrics returned and the car started ???? its done this twice . could it be the transponder in the key or is there another acc relay somewhere i cant see because it seems to take out all acc then return them after some time, very weirdstuff ,,,thanks in advance ,ken

was the key in the ON position for 20 mins while you fluffed around to try find the problem ?

thanks for reply, no the key wasn't on , actually the second time the keys were in my pocket 20 feet from the car and the doors were closed when i heard the noise ,, so i took the keys out of my pocket and pressed the door lock button on my keypad and it worked , i then walked to the car and started it , i had the keys out of the car in my pocket for about 10 to 15 mins , as i said its a weird one ,thanks ken

anymore ideas guys ? thanks

mate it'd have to be an accessories relay somewhere. Maybe even a f**k BEM? Not sure how it all happens with a AU

probaly a silly question but what is a BEM? thanks ken

body electronics module. It pretty much runs the body electrical system. Could also be called BCM body control module

thanks, where is the BEM located on the au? i appreciate the replys ,thanks ken

That sounds more like a dodgy Earth connection on the battery cable, Check the clamp for corrosion and make sure the connection to the body is good and solid.