My cars battery kept going flat, over night.
I replaced the battery, with a new one, and that went flat overnight.
I have had the new battery checked, and its OK.
I have had the charging system checked, and its OK.
I disconnect the Battery, every night, and the car starts first time.
Left it disconnected, for a week, and it started, no problem.
Anyone know of an Auto Electrician, in Pattaya,with good English, who might be able to sort the problem out for me.

thechairman18

It sounds as if something in your electrical system is not "going to sleep" as programmed. This can be anything from your radio, your autolocks on your doors, etc etc etc. I would suggest taking it to the dealership, and not some small time private guy. The dealership can plug in the system diagnostic checking computer, and tell you what's wrong within minutes. When it's electrical programming, don't mess around with nickle and dime guys. Go to the dealership and get it fixed right the first time.

Is it a Toyota by chance? They are recalling a bunch of cars in the US for this exact same problem. They have even stopped production the problem is so widespread.

Thanks for your reply.
The car is a 15 year old Peugeot 205.
So it doesn't have the luxury of electronic fault finding.

There's your whole problem right there. I am not sure I would actually admit to owning a Peugot. Hehehehe!

Leaks in those older electrical systems can take months to find. Good luck with it mate. You might be better off just getting a new car. May I suggest anything other than a Peugeot.

I thought the problem in the USA was sticking accelerator pedals? Somewhat different......

Yup, thats what my Toyota engineer mate tells me.


Stinky, got a link for this "other" toyota recall ??

It is... But then, its Stinky. Nothing at all to do with anything electrical.

Gimme a sec to find it. I think it was last week.

My bad. Toyota recalled the vehicles for the electrical problem in China. I only half pay attention to the new while playing Evony after work.

http://www.motor-trade-insider.com/index.p...nese-made-cars/

There was also a recall on the Toyota Tacoma for the radio not going to sleep recently. I can't find the link to it though. This also caused the batter to go dead.

That sounds like a parasitic draw problem. Anyone who works on cars and is good with a multimeter should be able to help you.
Page 5 of this pdf outlines the procedure:
http://ww2.justanswer.com/uploads/dinotapi...system_test.pdf

I had same sort of problem. Returned new battery and still lost power overnight. Turned out the light in the glove box didn't turn off due to bad switch. Found the source of the problem by accident. Good luck.

could be a dodgy earth connection somewhere, that can play havoc with your electrical system. had a similar problem on my old vw beetle, oh and check your fuses make sure they are all ok. also i know its stupid but check all your lights especially the vanity lights inside!!

Right folks,
Here we go.
I went round to see fellow BM ,from another Forum
After doing numerous tests, assisted by his son Mick, he came to the conclusion that there is a fault with the alternator.
Also the car is over 20 years old, and has been, shall we say 'modified', or rather fucked about with, and there are wires here there and everywhere.
The a/c has been 'hot wired', the radiator fan comes on, when the ignition is switched on, etc, etc.
At the BM's suggestion, I went to a garage, that deals in Alternators.
They tested it, and checked it over, and, agreed, that there was a fault with the alternator.
Although Thai's like to fleece Falangs, they told my TGF, that they wouldn't do the work, as it would be like opening a can of worms, ie, fix one thing, and it upsets something else.
They couldn't guarantee the work, and I would never be away from their door
Best thing to do, either keep disconnecting the battery every night, fit an isolator switch , and run it till it dies.
Thanks for the interest shown.
Thanks to all who have replied to this thread,
Happy motoring.
Ken
thechairman18

clean the battery teminals then if its no good its probably your Altinator or your electrics are stuffed good and proper

You could try this, Ignition off,Take of the + terminal of battery (somewere quiet) and listen inside the engine bay whilst you reattach the + terminal ,you might hear the sound of something engaging and that could be your problem and an easy fix.Saw this work when the AC clutch was engaing without being turned on, needed a new relay so was an easy fix.

Finally a helpful reply.There's obviously a drain,so that pdf should help.From here,it's a process of elimination using a multimeter.

usually from the earth as previously stated by myself!!

Cars don't have an 'Earth', they are on rubber tyres.
It is 'called' a negative 'Earth' but in reality it just means the whole body is the negative terminal.
Good luck, these problems can be a pain to find.

You can use a mutimeter set an DC volts or a 12V test light. Go to the fuses with the car switched off. Put one side to an earth, the other to each of the fuses. You may find a live circuit.

Or,as we say in the US,ground.