Hi guys! Just wanna ask n share some experience on my vios 05.
Remember few month bck around March, after like normal day driving to office, after finnish work when i plan to go home, i was unable to start my car, i was shock, coz everythings seems ok, fuel still half tank, no warning light appears on my meter panel prev. So i call up my foreman, he cm n chk, he also hv no idea about it, so he just reset the ecu by unplug the batt connector for 5 mins, then everythings works fine bck, he got mention mayb my batt quite old dy need to be replaced, so on tat day itself i straight away go change it and i assume tat is the batt problem.
So here comes today after for 3-4 month, this problems occurs again, i was unable to start my car, i try did wat the prev foreman do and everythings works fine bck.
I really curious about tis matter, does anybody face tis kind of problem...?? Or do u guys hv any solution or ideas to share about it.....

Hello blueworm, I am assuming you are trying to start your car with gear mode = P (park). This is a very common problem for Toyota VIOS 05/06 model. This was what happened to me, I need to push the gearbox from the P position and makes sure it touches the top of the gear. You got what I mean? Just makes sure the gear is in P mode and push it abit up (12 o'clock). There is a connection between the gearbox and the immobilizer, when we try to start our car, sometimes we are not able to because of this problem.

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Added on June 12, 2011, 9:37 pmHope this helps, please try it and inform us the outcome.

This post has been edited by guanteik: Jun 12 2011, 09:37 PM

Yes, i always in P mode, but i nvr notice and knwon about tis method.
But hw come after i unplug the batt connecter(means reset ecu) then everythings works fine bck..??

There is a sensor that signals the ECU if the correct gear is in place. If car is not in P, it won't start. Probably the sensor is dirty or faulty.

It's not recommended to reset your car settings by plugging out the battery connector. Highly not recommended! Try the way I told... and see if it works.



This post has been edited by guanteik: Jun 12 2011, 09:57 PM

Yes, i knw is not good to reset the ecu, but at tat moment, i just need try ways to start up my car, if not it gonna spend me $$ to call sum1 come. Tats y after today incident, i looking for ideas n solution for my cars by posting at forums.
Anyway, i m glad to hear from ur experience, tis is the 2nd time i face the problem for many months bck, hopefully it won't happen again, if yes i'll try ur method.....
Very thanks......

This post has been edited by blueworm: Jun 12 2011, 10:11 PM

Why want to worry on ECU settings? As far as I know, newer Toyota ECU do have the abilities to learn.....

So wat u mean is safe to reset the ECU setting by unplug the batt connector...??

No need, just unplug the fuse to the ECU are good enough.....

Where is the fuse located...??

Who said that If unplug the ECU fuse would 100% disconnect the power supply to ECU ?
Some Vehicle , Have a Few positive wire connect to ECU. and it does not ONLY go through ecu fuse.
and also , there's a Backup power supply connect to ECU to keep the settings / memory / error code in ECU
and also , this Power supply does not go through ECU fuse .
it goes through other fuse like MAIN Fuse etc.
So , in return , Disconnect ECU WOULD Not reset the ecu. ONLY Unplug ECU socket , or DISCONNECT battery would helps .

But , Be aware of immobiliser car. Battery disconnection would reset and change the immo code. and den u hav to go back toyota to Make new set immo + key. Price ? maybe 1k .

my suggestion : go to the workshop who hav MAchine to check ur engine code .
U hav engine code right now ?
if yes , can check it out easily
if no , the machine can Check "historical engine code "

i hav my own machine called : Launch X431. can check any codes u wanted .

Dun hv n not sure about engine code.....
So far i car hv unplug the batt connector twice(since the inccident occur), but alarm still working perfectly(thank god n touch wood), hopefully doesn't happen again.

This post has been edited by blueworm: Jun 14 2011, 09:31 PM

is it a cobra alarm problem? is ur immo light blink when u trying to start?

No idea izzit the cobra alarm problem or not, but i hv disarm b4 start my car, no blinking on the red light.
1 of my acc fren told me, it might be the alarm problem also, since is electronic thing we also duno until when can it be last rite.

i am sorry , i dont mean Alarm
i mean Immobiliser , that kept inside ur key
urs vios is wad year ?
first batch vios dun hav
2nd latest batch MACAM got immo

Mine 2005 1st gen vios, got car key alarm+disarm pen(tis is for immo rite).....

the disarm pen is Belong to cobra company , does Not consider as immobiliser

anyway , check engine code
i beloeve some sensor running out

suspect Cam / Crank timing sensors

Hw to chk engine code....??

use a computer of coz
but since u r user , u wont udnerstand what i mean

send to those workshop that hav engine diagnostic