Renault Clio UCH repair and replacement width new versions

[mexanico1971]

I People
I dont know if exist any thread about UCH repair and replacement
Old versions like Sagem BG or N?1 are not available any more
S? any one knows any source to buy it ?
wicth version is use now for replace old ones


About repair , i see that major problems are solders in PCB parts , not in connectors






Newbies , wend you want any pass , send PM to the guy , don"t span the thread

[albertros]

Hi,
BG can be replaced with N2, HG replaced with N3.
N3 will replace N2.
N1 seems to only like N1
Not complete list but a start.

[TULGEYWOODMAN]

Hi,
BG can be replaced with N2, HG replaced with N3.
N3 will replace N2.
N1 seems to only like N1
Not complete list but a start.

What can replace N3?

[Meat-Head]

What can replace N3?

No idea, use stalk function for “Obdmaster” not sure if was posted online or offline
but he was playing with himself and discovered odd things like no headlights or nor windows

if you cant find excact unit you need, get chepest off ebay and/or
”price up new from dealer” ask for latest part numbers

[volorucinski]

What can replace N3?

Did you tried the opposite? HG and N2?


.
FREE SOLUTION IN POST #50. READ BEFORE ASKING PASS, YOU LAZY PEOPLE! ASK PASSWORDS ONLY IN PM! STOP THIS "PASS PLEASE" SPAM.

[mexanico1971]

Thank"s for your input
So if BG can be replace width N?2 why does N?2 have delay after turn key off ?
I mean I switch off the key, and take it out of the ignition, and engine only 4 seconds later shot off ?
Any idea ?
I coded UCH width Clip

Thank"s in advance
Brs

[guerraa]

Hi, after UCH replace do a ECM reprograming and all will be ok, dont know why but worked all times for me.

Best regards

[Dunker]

Solder all caps etc. under black 40 pin connector. Solves 99% of UCH faults.

Also, for your own reference, from a good UCH measure all components to PCB GND under the connector and write all values down. Will give you an idea if a component or something connected to it is not right. Will save you hassle of removing connector more than once.

[Louislesinge]

Hi,
What I can tell you is I've change about 50 UCHs in my life, most of them with original parts, and a lot with used parts.
You can allaways change Nx for a same grade or higher (N1 instead of BG, N2 instead of N1 etc).
Another speciall thing is if you got a Clio with engine 1,9 DTI, it needs to be the same UCH because of the antitheft. No other UCHs works for antitheft instead of the original: it happens to me twice ( red light stays on without flashing, it means no comunication UCH=>ECU) and I did not find another solution than removing antitheft from ECU 0 281 010 788 .
I've tested virgin, copying, all desperate things you can do.
I think this kind of ECUs have a special protocol.
Regards,

[Louislesinge]

Hi,
By the way I order an UCH to replace BG P8200065817 G1 V4.1 , the replacement from Renault was 82 00 621 763 written N3 instead of BG.
Regards,

[Louislesinge]

Hi,
For the same UCH BG P8200065817 G1 V4.1 pulled up from recycle.
Antitheft light blinking permantly, does not reconise or even see any key i tryed (tested reset and another antena etc).
Tested continuity beetwen pin8 Black connector 40 ways and SAGEM E34707A OK (near the same connector upper right side, no contact to earth.
Tryed to replace the chip SAGEM E34707A from another working UCH: Now works fine, can learn the keys again, car starts.

If some needs electric diagram:
IMG_20180203_210759.jpg
Regards,

[tomo776]

Hi.
I found something and repair this uch without them come back to me.
It take me a lot of nerves to find this but I wanna to find what can be done and after that solution I repair more then 10 uch and cars work more then 3 years without problems.
If someone need this ask on pm for password.
I use picture from 1 post of mexanico1971 .
And my picture high res. to see how it`s look after repair.
Soldering is not my best work but in late nihgt hour when I work this can pass.

Regards

[cemar]

Hi.
I found something and repair this uch without them come back to me.
It take me a lot of nerves to find this but I wanna to find what can be done and after that solution I repair more then 10 uch and cars work more then 3 years without problems.
If someone need this ask on pm for password.
I use picture from 1 post of mexanico1971 .
And my picture high res. to see how it`s look after repair.
Soldering is not my best work but in late nihgt hour when I work this can pass.

Regards

Password please, tank

[carocar]

hi
anybody has pin out for this module ? i resolder everything on the board.
in my case i can reed with immo tool eeprom data over obd but i can´t read the hole car only airbag answer???
car is not starting light window wiper and remote work good. starter only work for 2 sec

[AsteveA]

Hi Tomo,

I am interested in your investigation please could you send PW

Regards

Steve