Renault Scenic 1999-2003 immo

**Essen cars** · 26th April, 2021, 03:29 PM

Hi friends, my name is Moaaz from Germany , i have scenic year 2000. Inside have mcu mc68hc705b32 (3g96A) plcc
I have read it with Xprog 6.26 Clone

This car crank but no start , and no immo light in Cluster
Please can you check the file if there any problem ? and how to reprograming the key ? or how to swap the UCH , or any other idea to start the car

Thanks for all
Attachment 804581 176385753_150187767036717_2724132012419599912_n.jpg Attachment 804581 renault scenic 1999 UCH Original.rar 176491069_150187820370045_7971331486685455390_n.jpg 176311667_150187787036715_4585501657954902565_n.jpg 178653055_152576506797843_5171326216070353826_n.jpg 176491069_150187820370045_7971331486685455390_n.jpg 176311667_150187787036715_4585501657954902565_n.jpg 178653055_152576506797843_5171326216070353826_n.jpg

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**rafal** · 26th April, 2021, 03:40 PM

https://www.youtube.com/watch?v=rrZtLVA7_tQ

or swap mcu to good one uch...............

**Essen cars** · 26th April, 2021, 04:40 PM

Originally Posted by rafal

https://www.youtube.com/watch?v=rrZtLVA7_tQ

or swap mcu to good one uch...............

thank you , but i don´t have this tool , other solution ?
can you check if the dump file ok ?

**rafal** · 26th April, 2021, 05:42 PM

Originally Posted by Essen cars

thank you , but i don´t have this tool , other solution ?
can you check if the dump file ok ?

if need - buy this

**Louislesinge** · 26th April, 2021, 06:23 PM

Hi,
Your problem is not clearly stated. If everything is original and the immobilizer indicator light no longer flashes, check the permanent power supply of the UCH. If ok, your UCH is out of order or has spontaneously become blank (when the UCH is new, the LED does not flash).
So what is the initial problem? Did you dismantle the UCH because the light stays off or is it off since you read or corrected the dump?
What is the car's injection ECU?
Greetings,

**credoline** · 26th April, 2021, 08:50 PM

Yours file in Motorola is damaged. The most time problem with this UCH module is water what they get over the cables. Originaly in car over UCH module is rubber cover.
I am 2 times success to repair file. Repaired file in attachment, not sure will work.
Good luck

[QUOTE=Essen cars;4115750]Hi friends, my name is Moaaz from Germany , i have scenic year 2000. Inside have mcu mc68hc705b32 (3g96A) plcc
I have read it with Xprog 6.26 Clone

This car crank but no start , and no immo light in Cluster
Please can you check the file if there any problem ? and how to reprograming the key ? or how to swap the UCH , or any other idea to start the car

Thanks for all

**Essen cars** · 27th April, 2021, 11:09 AM

Originally Posted by Louislesinge

Hi,
Your problem is not clearly stated. If everything is original and the immobilizer indicator light no longer flashes, check the permanent power supply of the UCH. If ok, your UCH is out of order or has spontaneously become blank (when the UCH is new, the LED does not flash).
So what is the initial problem? Did you dismantle the UCH because the light stays off or is it off since you read or corrected the dump?
What is the car's injection ECU?
Greetings,

thank you , this car came to me from other Work shop , i didn't have full information before , yes i have dismantle the UCH because the light stays off , the Engine
ECU siemens S110030214 , motor 2.0 Benzine 103 KW , Year 1999 .
BR

**Essen cars** · 27th April, 2021, 11:10 AM

[QUOTE=credoline;4115953]Yours file in Motorola is damaged. The most time problem with this UCH module is water what they get over the cables. Originaly in car over UCH module is rubber cover.
I am 2 times success to repair file. Repaired file in attachment, not sure will work.
Good luck

Originally Posted by Essen cars

Hi friends, my name is Moaaz from Germany , i have scenic year 2000. Inside have mcu mc68hc705b32 (3g96A) plcc
I have read it with Xprog 6.26 Clone

This car crank but no start , and no immo light in Cluster
Please can you check the file if there any problem ? and how to reprograming the key ? or how to swap the UCH , or any other idea to start the car

Thanks for all

thank you , i will test it
BR

**Louislesinge** · 27th April, 2021, 02:24 PM

Ok,
So what is required, to start the car or to make remotes and central lock work again?
If the owner just wants to drive again we can try to help you to remove immo in the Sirius 32 ECU.

**Essen cars** · 27th April, 2021, 03:03 PM

Originally Posted by Louislesinge

Ok,
So what is required, to start the car or to make remotes and central lock work again?
If the owner just wants to drive again we can try to help you to remove immo in the Sirius 32 ECU.

ok , that's good too , how to do that ?

**Louislesinge** · 27th April, 2021, 03:21 PM

Well, open ECU post some pictures of full mainboard, then we will tell you if you need to read 29F flash and post the dump here.
Please, remind we all try to help you, so please begin to press our "thanks" in left side...