Disengage the alarm system by disconnecting the hot wire to it ..then see if this still happens. if it is, and my theory is it is the alternator....start the car , and disconnect the battery..if it stalls it is the alternator.
SOURCE: Battery
You might need to get your electrical system checked beause may have a short that could be draining the battery while you don't drive. Try to get it checked at more than one place so you can find an accurate answer for your problem.
SOURCE: electrical problems - something draining battery
First of all, one of the easiest & cheapest ways to find a draw in the system, if you don't have a clamp on style amp-meter, is with a 12volt test light that costs about $5-$10 at parts stores or hardware stores. You remove positive (+) cable from battery, and simply attach test light in between the battery cable & battery + post. Be careful neither end touches metal obviously. Anytime the test light is lit, you have a draw. If light is nice & bright, it's a fairly good draw, when dim, slight draw. When light goes out, no draw. Now start pulling and re-installing fuses. If you pull a fuse and bright light goes out, you've isolated the circuit.. I usually make sure I have notes or whatever is needed to insure I put fuses back where they should be, then I pull radio fuse and leave it out, as it will cause a constant draw for memory, and sometimes any accessory fuses such as lighter, or power socket for 12v chargers etc. With those out of the way, start pulling and watch light, if no change, put it back in. When I run into a real stumper, I make necessary notes if needed as before, and pull them all out, and light should be off. Now I start putting them in 1 at a time, and watch the light, when it comes on, I note that circuit, pull it back out, and do same with the rest. When your done you will have notes on every circuit that is causing a draw on your battery when sitting. Before you start, take your test light, go to all the fuses and touch little tips sticking out at end of fuses on both side to test for power, if only power on one side, that is a circuit that would not cause a draw when sitting & vehicle off. That would only be powered when key on, headlights on for example, so it doesn't come into play here. Leave those in if you want & it doesn't confuse you. Yes a little time consumming, but hey, think of the learning experience, and a simple test light, is something that every car owner should have anyway. Next time your wondering which fuse blew, you have a test light to tell you. As far as the heated seat goes, if there is a short there, and it's causing a lot of draw, pulling fuse should eliminate & confirm that.
SOURCE: 2000 s type jaguar
I had the same problem when my alternator drained my battery.Underneath where the licence plate light is mounted there is a key hole on the right hand side.Any black headed key will open the trunk.
SOURCE: my battery is 6 months old and is good. my starter
LIGHT ON IN THE THE GLOVE BOX,TRUNK,STUCK BREAK LIGHT SWITCH,,, LOOK AT IT AT NIGHT WHEN ITS GOOD DARK. OR IT COULD BE A BAD BATTERY
Testimonial: "believe it or not, the new battery wasn't any good.thanks for your help"
SOURCE: jaguar s type, helper jump cabled my car and
You´ll need a new batt and a scanner reset, but maybe if (-) batt pole wasn´t properly touched you have a serious module damage! Good Luck!
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