Toyota Aygo (Peugeot 107 actually) B2799 loss of sync in IMMO

[danyman80]

Hi, can somebody pair up this ecu and immo dump for me please?

Tried Abrites Tag key tool make dump from key uploaded dump in immo , starts then dies same error.
Tried other ECU other Valeo IMMObox , same.
Tried sync with 4 and 13 pin OBD 1 hour , no luck.
What other solutions are? Thanks

KEY info: Page 1: 53 Tiris 4D
Page 2: 0E
Page 3: E6 A5 99 0C checked in 24c04 dump - ok

[lion0304]

Use tag key + blank 4D60 to make new key.

[bearheroes]

it is not lost of sync...
wiring problem.
standard error for these models

[danyman80]

I checked also pin 11 from immo with pin 51 from ecu - ok
Problem is i can not find where goes wire from pin 12 from immo. It is not on diagram. Where can i find a complete diagram to see conections between immo and ecu?

[rob h]

There a 3 different wiring types for these. 1KRFE
First type 2005 onwards
then Facelift with chrome in rearlight with revearsed ecu connectors.
Latest with led in front 2013-2014


2005+
12 to 111
13 to 83

This 1 = 2009-2012, or from the last 2013-2014
12 to 78
13 to 51

[bram380]

Hi, can somebody pair up this ecu and immo dump for me please?

Tried Abrites Tag key tool make dump from key uploaded dump in immo , starts then dies same error.
Tried other ECU other Valeo IMMObox , same.
Tried sync with 4 and 13 pin OBD 1 hour , no luck.
What other solutions are? Thanks

KEY info: Page 1: 53 Tiris 4D
Page 2: 0E
Page 3: E6 A5 99 0C checked in 24c04 dump - ok

Your abrites too enough for this cars.

Please paart number immo & ecu.
I can help to start the cars.

[autochei]

wiring problem
Remove dash and check conectors near pilar.
or Engine bay wiring (search for the green wire) from ECU to engine
but first of all make diag and post DTC here.

[bearheroes]

Diag gave B2799...this happens due to 3-cylinder engine.


Sent from my iPhone using Tapatalk

[vorovei constantin]

check The thread color ,, purple"
immo signal
in engine complementar crossing the body (in the right gearbox)
you will succeed

[Tedum]

The problem is inside the antenna there is npn transistor change it if you know about it

[danyman80]

Ok.Thank you for all advices, when I come back to service I will try all these and let you know if succeeded...

[danyman80]

Thank you Rob and autokey for the pinouts. Finnaly solved!! It was pin12 to 78 wire interrupted...

[danyman80]

What program did you use for wiring?

[dantical]

Thank you Rob and autokey for the pinouts. Finnaly solved!! It was pin12 to 78 wire interrupted...

any more info on this ? From immobilizer to Engine Ecu? but doesn?t it go from pin 12 ( purple) immobilizer to pin 6 ( Green ) engine ECU?

Any help?

Having the same issue,.. b2799 synch does not work, guessing wiring issue,... any common Problem where to find it would be great,..

thanks guys

[io1]

hello someone can help me?I have toyota aygo 2006 1.0 and i have the same error B2799.In my immobox plug i have only 10 pins and Rob H sait to verify 12 to 111 and 13 to 83.

[io1]

i find 16 pins plug. but in ecu ant pin111 in not wired.I location of pin is empty

[rob h]

You have the wrong box. On top is the remote locking unit,( if your car is fitted with central locking)(thrunk lock, means, no central locking installed)

You need to remove the immobox:
Remove 2 screws, to get the cluster cover off Push hard, on the left side of the dash, it will come up.
( Only enough to slide you hand in, otherwise, it may tear the dash cover)
Look straight behind the cluster, 15cm, 10mm bolt,
Holding a bracket that goes downwards.
It holds the immobox.

And there are a few different ecus,
With different wiring positions.