Toyota Yaris 2007 with smart key Immo problem

[Dynamitik]

Hello Friends!
There is a car Toyota Yaris 2007 petrol. The car has a smart key. Central locking works, the ignition is turned on. By Immo no errors, one error by the motor: B2799 Engine Immobiliser System. I think we should do synchronization immo and ecu? If I'm right tell me how to do it. Thanks in advance for any help.
Immo: ECU Aggregation Toyota 89300-52051 Denso inside 93C66
Engine ECU: Toyota 89 661-0D400 Denso inside 93C56 (RH56)

[lashkar97]

immo and ecu sync need if u change ecu or immo . if u not change any thing . than no need it check wiring . when u insert the key security light is gone off or its blinking . check these all things . after that check signal in injectors and coils .

[koncimobil]

DTC No: DTC B2799
Detection item: Engine Immobiliser System Malfunction

Trouble area:
-------------
1) Error in communication between ECM and transponder key ECU, or in communication line.
2) Communication ID in transponder key ECU is different.

This DTC is output when:
------------------------
1) the ECM detects errors in its own communication with the transponder key ECU.
2) The ECM detects errors in the communication lines.
3) The ECU - ECM communication IDs between the transponder key ECU and the ECM are different and an engine start is attempted.

[Dynamitik]

immo and ecu sync need if u change ecu or immo . if u not change any thing . than no need it check wiring . when u insert the key security light is gone off or its blinking . check these all things . after that check signal in injectors and coils .

security light is gone off, wiring ok!

[makz]

Just do sync

[nasir]

hi just short pin no 4 & 13 in obd connector for 30 mins your engine ecu & imm ecu will be sync & your car ready to start .

[Dynamitik]

hi just short pin no 4 & 13 in obd connector for 30 mins your engine ecu & imm ecu will be sync & your car ready to start .

short pin no 4 & 13, but car not start

[Dynamitik]

The problem has appeared in a smart key. It isn't defined and not read on the programmers transponders.
But the car must still be made ...

[TIA]

than make a new key and start a car

[jebo]

Hi all,
Does someone have a wiring diagram to share for this car?
Specifically the immo to ecm section?

Tnx!

-----------------------------------
edit:
just found a diagram:
http://www.digital-kaos.co.uk/forums/f178/yaris-w-smart-key-285489/#post1657715

[JIMMYQ]

hi any luck with this code i have same fault with a 2007 yaris coded 2 keys back in remote working ignition coming on etc immo light going off car cranks but no start showing b2799 with techstream ? ive virginised immo and ecu (dont have the original file for ecu) ive also synced pin 4 and 13 for 35 mins but still no start any ideas guys ?

[jebo]

My problem was caused by broken LIN wire from IMMO ecu to engine ecu

[JIMMYQ]

My problem was caused by broken LIN wire from IMMO ecu to engine ecu

do you have a diagram for this please as this is all i have left to check on this car now while the dash is out thanks mate much appreciated :) was yours the smart key too ?

[jebo]

do you have a diagram for this please as this is all i have left to check on this car now while the dash is out thanks mate much appreciated :) was yours the smart key too ?

Yes, it was smart key.
Not exactly the model, but i used this as reference.
http://www.digital-kaos.co.uk/forums/f178/yaris-w-smart-key-285489/#post1655957

And

http://www.digital-kaos.co.uk/forums/f178/yaris-w-smart-key-285489/#post1657715

[JIMMYQ]

all wiring on mine is fine must be ecu and immo need sync as i virginised ecu dont have the original chip :(

[JIMMYQ]

thanks mate sorted it with another dump in the ecu thanks again now started :)