Hi All. my turn to ask not help for a change!. My R Reg sintra has the standard vauxhall fitted TexAlarm (AV2154EGB "C") Since aquiring the vehicle (abt 18mnths now) we have always had to disable the internal motion sensors using the dash button. else it goes off when either weather is ultra hot ot freezing. could live with that! however, last w/end was very very foggy & rainy (not kidding) for almost 36hrs. since then the alarm now goes off when we turn the key in the ignition to start. it will not disarm, goes thru the motion of flashes like always but immediately starts sounding siren again.!! after about 4/5 mins in gives up & the motor is fine. Ofcourse when we took it to charvilles the beassty would not do it! but tech 2 did report several instances of door/tailgate activations so they cleaned all the sensors for good measure & charged £70. i have no problem with them , the guy said that if it was not the answer they would look again for us. now having been in electroinics for 25+yrs i understand all about alarm systems/sensor etc & how they works & could no doubt diagnose the problem. but how about your ideas!! the keyfobs (2) have OK batteries & 1 has been reprogrammed as a test via the approved method. using the ignition key alone in the door makes no difference either so it is a general disarming problem. i am currently thinking that (if? - how do i tell?) my car has the immobiliser, then that must be working arm/disarm OK on that cause i can start the car with the alarm sounding, so it must be the overall disarm mechanism, & it's not the motion senors either. it will go into charvills again on monday. in the meantime any ideas? any thoughts! luckily i live in the sticks so it going off makes no-one unhappy but it is a bit funny parked in tescos!! is there anyway i can turn the thing off totally until Monday?? thank you mike