No start after boosting the battery on a 2012 Toyota Land Cruiser GRJ200

[kilog]

Hi,

Please i have big problem with a 2012 land cruiser engine V8 1GRFE 4000CC with smart key,
After boosting the bad battery with a second battery the car started and I moved it from a parking place to another.
one week later when I try to start the car again I have a ! sign with a key on the dash and no ignition, and no way to start.
I have boosted the battery with a second battery again, changed the weak battery with a good one=> no way, still no ignition.
I have changed the battery inside the smart key also, but no way I still have no ignition and no way to start the car.
I have checked the fuses, and they are all good.

How can I solve this issue please!!!

Thanks and regards

[rafal]

how you think - who will go too you and will do good diagnostic of car ?

[kilog]

Thks for your answer

but how do I switch on Can system, the dash, modules and everything in order to diag when I cannot put ignition on
I need to manually light up dash and wake up can system before I can diag the system

Regards

[achaccha]

Check fuses, in any case you can at least communicate with the smart key to know what dtc you have. You can also power the Ignition from outside and be able to scan.

[kilog]

Check fuses, in any case you can at least communicate with the smart key to know what dtc you have. You can also power the Ignition from outside and be able to scan.

ALL THE FUSES are OK
Please tell me how do I power the Ignition from outside and be able to scan.
As for now with all the tools I have I cannot access the car
The tools I have tried with so far are:
- Toyota TIS
- FVDI 2014

[fuzz1]

The sign of the key makes me say you have at least an immo problem. At least cause I think there are more. I think it would be the point to start. So ecu would have to come out and immo fixed on the table.

[kilog]

The sign of the key makes me say you have at least an immo problem. At least cause I think there are more. I think it would be the point to start. So ecu would have to come out and immo fixed on the table.

For sure I have an immo problem (at least)
If I remove the immo without knowing exactly the all defaults that I have how will I solve the problem?
Which idea do you have in your mind my dear?

[rafal]

Obd diagnostic is not all....... I will check parts for burn.....eg: opening ECU , etc

[kilog]

Obd diagnostic is not all....... I will check parts for burn.....eg: opening ECU , etc

Really!
May be , but I am puzzled because the car started and behaved 100% when I jumped started the battery.
What I guess is a corrupted eeprom or flash memory not a burnt component...


I prefer to safely bypass ignition, and manually send 12V somewhere in the fusebox (BUT WHERE, THAT IS THE QUESTION)
and manually light up dash and wake up CAN system in order to diag at least immo and Powerrtrain Ecu

Regards

[kilog]

Hello friends,

I think to solve this issue I have to virginize immobox at least and may be smartkeybox also in order to be able to program new keys and start the car.

Can someone tell me if I can safely and successfully reset smartkeybox 89990A and immobox 89784 with Fly FVDI 2014
if not what can be your advive to renew these 2 ECUs

Regards