Battery Being Drained

[stubarny]

Hello,

I have a Battery that gets drained overnight. (my car is an Avensis GLS 2.0 petrol 98/R)

With the ignition off I took out each fuse in turn and measured the voltage accross the female contacts. Here are the results:

Dome: 10V

Head (RH): 0V

ECU-B: 12V

AM2: 0V

RAD NO.1: 11V

D.C.C: 10V

HEAD(LH): 0V

HORN: 0V

ALT-S: 6V

H-LP CLN: 0V

HAZARD: 12V

EFI: 11V

I was expecting one to give a voltage but getting 7 was a bit of a surprise! (I would give you Amp readings but unfortunately I blew the multimeter's Amp testing circuit's fuse by applying directly to the Battery!)

Is there anywhere I can get a wiring map to find a common denominator between all the bad circuits?

Many thanks for your help!

Stu

[t-spiritpete]

Hello,

I have a battery that gets drained overnight. (my car is an Avensis GLS 2.0 petrol 98/R)

With the ignition off I took out each fuse in turn and measured the voltage accross the female contacts. Here are the results:

Dome: 10V

Head (RH): 0V

ECU-B: 12V

AM2: 0V

RAD NO.1: 11V

D.C.C: 10V

HEAD(LH): 0V

HORN: 0V

ALT-S: 6V

H-LP CLN: 0V

HAZARD: 12V

EFI: 11V

I was expecting one to give a voltage but getting 7 was a bit of a surprise! (I would give you Amp readings but unfortunately I blew the multimeter's Amp testing circuit's fuse by applying directly to the battery!)

Is there anywhere I can get a wiring map to find a common denominator between all the bad circuits?

Many thanks for your help!

Stu

Haynes do a manual for your car and your local library should be able to help or buy one off eBay.

Pete.

[Druid Boy]

Um, just a wild stab in the dark but it might be that your Battery has had its day. Drop test it by measuring the voltage across the terminals when starting the car. Dipping to less than 9v is bad and suggests its time to replace the Battery. In my experience batteries fail more often than wiring.