Battery being discharged .

[mir60899]

My wife's T2 has developed a fault where when switched off something is drawing about 1.4 amps out of the battery.

It's a brand new, well one week old, battery and the car only goes out at weekends. The alternator light stays off once started and I can not see that anything is left on accidentaly.

Anyone any ideas?

Cheers

 

[Terrano Steve]

You can measure parasitic battery drain with a multi meter and remove fuses to eliminate different circuits to work out where the drain is.

 

[Barrbeast]

Could be a diode gone in the alternator, that will cause a parasitic drain when the engine is off (but will charge fine with engine running). Best way to check is unplug the alternator and see if the drain stops.

Had it happen in my old Shogun, you either fit a new alternator or get the faulty one fixed.

 

[Mobieus_uk]

As you have been quite specific on the current drain I'm assuming you've got a multimeter of some sorts
I would start by pulling fuses until you see that 1.4amps drop off, that will at least tell you the circuit

just to add I'm not mad, when off to make coffee while in middle of post only to find i had been beaten when i finally posted, lol

 

[mir60899]

Update

Just been and dissconnected the alternator, still 1.4amp drain. Much head scratching then drain started to decrease to 0.37amp, as the interior lights went off! Dohh!!

I'm beginnig to wonder if this 'flatish' battery symptom is perhaps the ignition switch problem mentioned on other threads.

 

[jims-terrano]

What about battery terminals, check the downloads section as theres a section on those.
Also is the battery going flat? The starter motor can behave like the battery is flat when it's on it's way out.