Hi all,

 

Deciphering an electric power leak when the car is off, battery drains within a day or less. It's a 1990 G reg auto TT. Battery charges fine when the car is running, and has just recently been replaced.

 

The previous owner added many electrical mods, with the pure mayhem of which pictured below with a third party alarm (Falcon Predator XL3, black box where the wires are all going into in pic 2). There is a red switch here also that connects to the alarm (pic 2, left, red/yellow wires), I'm assuming to disarm it from inside the car? And also a variable controller on the black box with the screws sticking out of it (pic 2), not sure what that does. Aaand a turbo boost controller in the form of a variable resister (on the right, blue/brown wires)

 

There's also a a huge kenwood amplifier, speakers, gps snooper, actuator valve controller, custom fan switch, and the 3 settings for the auto transmission box have been changed to button switches. And a spring inside the engine bay which can be pressed, as if the bonnet pressed on it when closed, with wires going somewhere I do not know.

 

I never arm the alarm, but sometimes when the battery has been drained and I'm jump starting it, it will immobilise till I unplug the battery and try again.

 

There is also a battery killswitch in the engine bay, but I'm unsure whether he added this after or before the battery drain problems..

 

So I'm wondering if anyone has any advice on this, whether it could be the alarm draining power even it is disarmed, or if there are any other specific areas to pay attention to?

 

Cheers!

 

 

 

You need to isolate each item and see what the battery draw is, either disconnect, pull fuses, may involve turning the key on/off, not easy but when you find the fault it'll shoot down.

 

Could be your battery is useless though.

 

That's the trouble with aftermarket stuff done by someone else, it's unfamiliar, unique to you and is difficult to diagnose on these pages but you'll need to check in turn.

Yeah that's what I would have thought but just thought I'd check.

 

Will get crackin, thanks