Shootingman Posted February 11, 2008 Report Share Posted February 11, 2008 My son has a Vauxhall Corsa, & he's just come home in a panic. When he switched the engine off & removed the key, the battery light came on & has stayed on, within an hour the battery has drained completely flat. Where do I start looking. Quote Link to comment Share on other sites More sharing options...
webber Posted February 11, 2008 Report Share Posted February 11, 2008 Alternator & Starter motor. webber Quote Link to comment Share on other sites More sharing options...
sidburt Posted February 11, 2008 Report Share Posted February 11, 2008 Sounds like one of the relays has stuck on. Find out which is the power on relay from a Haynes manual or the owners manual and remove it ( with the battery recharged and the ignition on). If the light goes ot then its likely to be the relay. Be careful though because it could also be the ignition switch... Quote Link to comment Share on other sites More sharing options...
mirokujames Posted February 11, 2008 Report Share Posted February 11, 2008 try things like,interior lights i.e boot,under bonnet light if it has one. all the simple things first. Quote Link to comment Share on other sites More sharing options...
mattyb Posted February 11, 2008 Report Share Posted February 11, 2008 agree with above but i had similar problem with my corsa and all i needed to do was replace the battery but i put a 1.8 diesel in my 1.2 to give it more than enough, seems to have solved the problem also dose he have all that stuff in the boot subs, speakers etc?? matt Quote Link to comment Share on other sites More sharing options...
codling99 Posted February 12, 2008 Report Share Posted February 12, 2008 my guess is alternator Quote Link to comment Share on other sites More sharing options...
Lord Geordie Posted February 12, 2008 Report Share Posted February 12, 2008 For an alternator light to come on AFTER switching off the ignition points more to a shorting fault NOT leaving Lights etc on. Once the ignition is turned off this cuts almost ALL major power circuits in the car. An alternator light being on when the key is removed would generally point to the Alternator shorting out (possibly oil on the Diode plate) or a insulation Fault like the bush has broke or worn away or a wire has burned through making contact with the block or bracket allowing the unit to short out to Ground. Either way get it sorted as this CAN lead to an electrical fire Quote Link to comment Share on other sites More sharing options...
Shootingman Posted February 12, 2008 Author Report Share Posted February 12, 2008 Disconnected alternator this morning, live cable connector looked a bit dodgy, put a new spade connector on, reconnected & WALLA, it worked. Thanks for all the advise lads Quote Link to comment Share on other sites More sharing options...
dazzyboi Posted February 12, 2008 Report Share Posted February 12, 2008 These are quite common with corsa's. i replaced the battery Quote Link to comment Share on other sites More sharing options...
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