Alternator Or Battry?

[avensis 1.8vvti 2001]

hi, i have a toyota avensis 1.8vvti y reg manual petrol; - basically my car battry has gone completely flat. i was driving halfway to work the battry light came on my dash and also th abs light, gradually the lights started to fade as if the battry was dying. the radio stopped working and the car had lost power to move, my rev meter was stuck along with my speedo. the car came to a stop, i tried switching the car on again but the battry had died. i replaced the battry with a charged up one that i had then that died too and the same thing happended.

can someone plz advise me if its the battry or the alternator or starter motor that is causing this problem.

i would b greatfull for any replies

many thanks

vali

[igormus]

hi, i have a toyota avensis 1.8vvti y reg manual petrol; - basically my car battry has gone completely flat. i was driving halfway to work the battry light came on my dash and also th abs light, gradually the lights started to fade as if the battry was dying. the radio stopped working and the car had lost power to move, my rev meter was stuck along with my speedo. the car came to a stop, i tried switching the car on again but the battry had died. i replaced the battry with a charged up one that i had then that died too and the same thing happended.

can someone plz advise me if its the battry or the alternator or starter motor that is causing this problem.

i would b greatfull for any replies

many thanks

vali

hello

in case you've changed the Battery then it can not be flat at once.

the possible problelms are: charging I & V of an alternator; electricity leak to the car's body via brocken cable; charching relay.

cheers/Igor

[Muarrif]

I have a 2003 T3S model Avensis and had to get the Battery replaced 3 times in last 8 months. Each time I was told by Toyota that their Battery was faulty (replaced free of charge last 2 times but charged me for the first time) However I am still having the problem if the car is left for week or two without starting.

I am suspecting there is a leak in my case and I am taking it to garage tomorrow.

In your case I suggest you need to check and confirm:

>> Have you installed any new gadgets? (bluetooth, Phone Charger, IPOD etc.)

>> Have you had an upgrade to your ECU?

If so take it to Toyota and ask them to carry out an overnight Battery diagnostic.

This will determine if the battery is being charged properly and holding charge.

[igormus]

I have a 2003 T3S model Avensis and had to get the battery replaced 3 times in last 8 months. Each time I was told by Toyota that their battery was faulty (replaced free of charge last 2 times but charged me for the first time) However I am still having the problem if the car is left for week or two without starting.

I am suspecting there is a leak in my case and I am taking it to garage tomorrow.

In your case I suggest you need to check and confirm:

>> Have you installed any new gadgets? (Bluetooth, Phone Charger, IPOD etc.)

>> Have you had an upgrade to your ECU?

If so take it to Toyota and ask them to carry out an overnight battery diagnostic.

This will determine if the battery is being charged properly and holding charge.

hello

FYI: i own Avensis 5 years round and the Battery remains the same as original iinstalled in Derby (!!!). I have never changed the Battery during this period. The car is used each day + 365 ddd

cheers/Igor

[dibber]

Sounds like a charging issue. The Battery in a car is really on there to start it. Once running, the Alternator provides all electrical power for the car whilst charging the Battery back up again after starting.

[irishtechy]

Hi Vali

Did you get yours solved as my 1.8vvti did the same last night?

Thanks

[GregT3-S]

Buy a cheap multimeter from a hardware shop set it to Dc Volts. With the engine running put the probes on the Battery terminals if it reads less than 12.5V the alternator has had it. If it is 13/14V the alternator is perfectly healthy and the Battery is at fault or somthing is causing the Battery to discharge.

Hope this helps.

[irishtechy]

Buy a cheap multimeter from a hardware shop set it to Dc Volts. With the engine running put the probes on the battery terminals if it reads less than 12.5V the alternator has had it. If it is 13/14V the alternator is perfectly healthy and the battery is at fault or somthing is causing the battery to discharge.

Hope this helps.

Hi

Thanks for your reply

It was the alternator. Replaced it yesterday and everything working fine again.

Regards

Irishtechy