Scenic 1.5 dci not starting immobiliser on! Electric fault.

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Thank you
Hi
This car came to me as a non runner, not even cranking, lots of faults as soon as the ignition was turned on, and immobiliser light did not go off.
A bit of investigation and common sense, revealed that the engine ECU was not being powered, creating all the symptoms ...
Further investigation revealed that a damaged wire.
Vibrations made the wire insulation to worn out, and as soon as the copper strands got exposed the moisture did the rest.
After the wire repaired, the immobiliser light went off, no more faults coming up, and the engine started.
Hope this can help you!
Like always, thank you for watching!

[@josemartin4592]

Gracias por tu trabajo y por comentarnos el problema, una averia de esas puede volver loco a cualquiera. sigo tus videos muy atentamente y siempre se aprenden cosas nuevas. Gracias de nuevo por toda la labor.

[@Mrgiz-2e0off]

Thank you so much for putting this video on i had the RAC trying to find out why my car wouldn't start and ended up not fixing it .. i spent less time and effort and found a wire almost in the same place as on the video broken so a simple repair to that wire and .. wow car fixed and running.. thank you thank you thank you saved me so much money on any garage or auto electrician fixing it

[@LMAutoRepairs]

That's great news! Thank you for watching and for your comment! 👍👍👍

[@SuperFairydust]

thanks so much for showing this. my car did not have the same problem but i did have the immobiliser light on. then I noticed that you pushed the start button without your foot on the break and it seemed to re set it so i tried it and it worked. thanks again

[@LMAutoRepairs]

Terry n Lori Holmes Thank you for watching and for your comment... Glad my video helped you somehow...

[@simonmasters3295]

@Terry n Lori - if this works (after three days of frustration) I will be well pleased @LM Auto Repairs - thanks for your help, excellent video @RENAULT your designers should be shot at dawn...I have never worked on a more counter-intuitive auto-electrical system: I will NEVER recommend your vehicles and will actively campaign to stop anyone from buying a car from your company My advice is (1) Patience Wet fusebox makes for multiple faults - you can ignore many (2) Never buy a Renault, or a car with an immobiliser (3) Don't believe everything you see on KZbin or read in the forums but see: (3a) www.fixya.com/cars/t11926129-resetting_immobiliser_renault_scenic?wa=1 (3b) www.automotiveforums.com/t453184.html

[@eoghanhennessy443]

Hello i have dacia duster 1.5 dci 2015 . Seems to have immobiliser fault. Df009 df024 df280 its registered on diagnostics. Car will crank and no start . If i disconnect any engine sensors they will register a fault but they will not clear none of the faults clear . We have checked relays and fuses .

[@uwuking9914]

Hi thank you.I have almost the same problem that I'm busy with.Awesome video once again

[@LMAutoRepairs]

😊 👍👍👍

[@andiprawira9643]

Great explanation. I got exactly the same symptoms with my Dcenic. No cranks, immobiliser light keeps on, fuel pressure low, hand brake failure etc. Wish I can locate the faulty the same way.

[@LMAutoRepairs]

Hope you find the problem still... Thank you for watching and for your comment! 👍👍👍

[@VitaraRevDue]

Bravo e grazie ho risolto guardando il tuo video

[@LMAutoRepairs]

👍👍👍

[@OneAuto]

Great find, well done

[@LMAutoRepairs]

Thank you!

[@hadjamsifi184]

vraiment top je me régale de vos connaissances

[@zinktrumpet]

10 out of 10 for persistence amigo.

[@LMAutoRepairs]

zinktrumpet Thanks...

[@sosauto22]

tres bien et mercie bien pour les explication et le belle qualité de la video

[@LMAutoRepairs]

Sayad abd el hafid Merci bocu...

[@josepeixoto3384]

Nice catch

[@LMAutoRepairs]

Jose Peixoto 😋😋😋 Thanks!

[@sara78130]

good job

[@johndory4331]

Great video... Very informative... Thanks..

[@LMAutoRepairs]

John Dory Hi Thank you for watching!

[@ik_autoservice]

Have exatly same problems on 2 customer cars, will check soon.

[@LMAutoRepairs]

👍 Thank you for watching and for your comment!

[@johndory4331]

superb mate well done a great tutorial thank you very much sir ..

[@LMAutoRepairs]

John Dory Hi Thank you for watching and for your comment!

[@johndory4331]

cool.

[@train4905]

Well done sir.spot on.

[@LMAutoRepairs]

Thanks! 👍👍👍

[@LithaHopeMngoma-fs8tc]

i have the asame problem but i looked for wires everything looks to be fine

[@bedford1941]

I like this thanks I took the fuse box out and it all looked good but I did not look for worn out wires this is my next idea to try ....

[@LMAutoRepairs]

Richard Holmes Hi Have hooked a scanner to check the car? If not, that would be my next step...

[@bedford1941]

lmsvvavr yes and the guy I borrowed it from said the obd socket also had no power

[@LMAutoRepairs]

Richard Holmes OK... I know this is basics... but, check fuses and relays... Even with no power on the OBD socket, could you communicate with the engine ecu?

[@bedford1941]

lmsvvavr he said that it said linking error as the socket had no power ...I did not ask him as I don't know how they work but he was confused as his one is powered by the socket it tries to communicate with the brains of the car but would not .....then he and his terminal went home ....

[@LMAutoRepairs]

Richard Holmes OK... the 12 volts on the OBD socket are not needed to scan the car, providing you have a self powered scanner, but the fact that the 12 volts are missing from the plug, is an indicator that obviously something is not right. So, the car does not start, any other symptoms? Lights, etc... Once again, have you checked all fuses and relays, making sure they are working correctly?

[@simplicekoubanguelanke4801]

I live you video that is the best thanks so much you save my life

[@LMAutoRepairs]

😊 👍👍

[@regp5632]

VERY INTERESTING

[@LMAutoRepairs]

REG P Thank you for watching!

[@byivan1]

you dont have a video of renault laguna 2 except card reader-i own that car and have many problem with electronic--i hope you fix some of that car soon

[@LMAutoRepairs]

If I have one, and have the time, I will record it...

[@mariusifrim5396]

Hello you have any ideea if at megane 2 1.6 16v 2007 is the same? At g4 need to be 12V... the ecu is turned on from upc?

[@LMAutoRepairs]

Hi Difficult to say without checking diagrams etc... kzbin.info/www/bejne/a3vPkKOle5holaM Myself or a fellow member, will be more than happy to help! Thank you for watching!

[@albertallback6268]

Hi. I've got a Renault Kango. Like you described in this video, there is no response on the engine Ecu and the immobilizer lamp is on constantly, can't connect to engine Ecu, I have checked all pins and I do get some volts on that but don't know how many it has to be on each one pin, in your case it was 5 volts, but how could I know how much volts it has to be, is that some map on those Ecu contactpins that we can get some how?

[@LMAutoRepairs]

See what ecu you have, and search the pin out... Thank you for watching!

[@arbcoll]

Great and very useful videos from LM Autorepair. In the similar model (scenic 2 1.9 dci model 2003) I have a problem with starting the car, dashboard is black (it had radio and clock working last, then got entirely black), the immo light stays on all the time! Checked all the fuses and relays, reconnected wires in R2 (thanks to your another video) due to the water leak, but still the same. I notice rodent traces under the bonnet, also reconnected wires of air regulator that were damaged most probably by a rodent, but still the same! What would you suggest to check next? Can somehow the immo be damaged, lost codes, or similar? Thanks in advance!

[@LMAutoRepairs]

Scanning the car, what do you have? Thank you for watching and for your comment!

[@arbcoll]

@@LMAutoRepairs the scanner cannot connect, it was like that even before the issue, when car and the dashboard were working. Forgot to mention I was having "check injection" message for quite a time, and it was not the glowplugs...

[@LMAutoRepairs]

@@arbcoll Power and grounds to the engine ecu... Can you connect to any module at all?

[@arbcoll]

@@LMAutoRepairs excuse me, not sure if I understand correctly "can you connect to any module at all" if you mean to connect through odb2 scanner the answer is negative (actually this was tried before the defect, with different scanners at an auto-electricyst garage. I personally have an elm327 on which I do not rely much, and tested now with it and couldnt connect). Btw, I'm an amateur, trying to fix my car which luckily had been parked in my yard from where suddenly it couldnt start. The symptoms are identical as described in mhhauto.com/Thread-scenic-2-no-ignition-no-start-problem (apart that the immo light is not flashing, but stays on). From where I should start next, I have no ideas...

[@arbcoll]

@@LMAutoRepairs I measured the battery, and it was giving 7.5 V... after 24hrs of charging, I reconnected it and everything came on, dashboard and the car ignited! Thanks for a lot of inspiration here! At the end, I didn't get what was the main issue, I guess the water on R2 and on another connector that has fuses and a relay G. Cartier 12V-50A-03525 on it (under the driver's seat on left-hand drive car, with the main cable from there plucked). Given it took time for me until I figured out all tge matches on wire colors, I guess in the meantime battery drained (it was disconnected for more than 2 weeks).A big THANK YOU once again from Kosova!

[@timmccarthy3034]

thanks for the vid....a question I have perhaps you can help us out, we bought a Scenic, 2005 model, and it was all good at first, for the first week, we were happy about the car.... no problems, then a dashboard warning light, and beeping noise came on , saying "recharge battery".....so we went to the local garage immediately, and the mechanic tested the battery, said it was a "very weak battery", that we "needed a new one", so we got it, spent 140 euros, and drove away, and the light came back on again, so we drove back to the garage, this time the guy said it was, in fact, "the alternator, not charging the new battery", so, a very expensive repair job, here in France, where parts are very pricey.....The mechanic suggested that we go back to the guy who sold us the car to inquire......So we went back the guy we bought the car from , told him what was happening, and he seemed "very surprised".......and so, he said, that he would put in a "new alternator", at no cost to us...I felt like our problem was over......He came over, took the car back to his house, for 3 hours, where he placed a "reconditioned" alternator, not a brand "new" one, and he drove it back to our place, saying the light STILL comes on, even though he is 100 percent certain the previously used, reconditioned alternator he installed is "working" ..and really IS charging the battery.....So we are stuck , with a warning light, and beeping noise, saying "battery recharge", so why is this happening ? From the "reconditioned" alternator malfunctioning? Or is it a much bigger problem, like a short in the wiring system hidden away somewhere in the car? Or is it that the computer light itself is just giving us a "false warning" , because IT is malfunctioning? Can you or anyone out there offer any advice, other than "sell the car"....(and take a big loss)? Because now, with this light permanently on, we cannot sell it for shit. We just are out 2000 euros on this piece of shit......and I am about ready to strangle the guy who sold it to us. THANKS for any advice you can give.

[@LMAutoRepairs]

Hi All of that, and you never mentioned what voltage you have with the engine running... Looks like parts are being replaced with no testing/diagnose at all! The typical parts cannon method... Next... Measure the voltage at the battery with the engine running... should be above 14 volts... Thank you for watching!

[@timmccarthy3034]

@@LMAutoRepairs ok..thanks....

[@LMAutoRepairs]

Let us know how much you are getting... 👍👍👍

[@froggy0162]

Check the earths

[@simout3877]

Good job to find this 😎

[@LMAutoRepairs]

😊 Thanks! 👍👍👍

[@simout3877]

Any chance you might know what’s wrong with my car 2010 scenic keyless saying key not recognised but key has been tested Alarm goes off soon as open door doing me head in cus can’t move it even on truck handbrake stuck on 😩😩thanks Alan

[@LMAutoRepairs]

Is that the card system?

[@simout3877]

@@LMAutoRepairs sorry yes keyless with card cheers

[@LMAutoRepairs]

There is a possibility that there is cracks on the card electronics... a bit common... Have repaired a few...

[@yazanalmograbe7171]

nice grate video

[@amuskong1396]

Hi.great work and good explanation i really enjoy ur video watch it like 4 times already,my name is smith amuskong am based in Cameroon,i have the same problem with my megane 2 1.9 dci engine. 2004,first it was the keylock suit that out.now am stock with immobiliz light no crack some times it crack once and that's it.please will u be kind to help me with the ecu supply pins.thanks in advance..

[@modougueye5738]

salut je vous demande comment réparer la clé Laguna 1.9

[@abbasbarzegar1241]

Great 👍

[@LMAutoRepairs]

Thanks! 👍👍👍

[@djollieuk]

my megane wont start at all, is there a fuel cut off switch? 1.5 dci diesel 58 plate megane mk3 phase 1

[@LMAutoRepairs]

gavin oliver Hi Cars have some sort of fuel cut system... but first try to scan the car and see what codes come up...

[@djollieuk]

lmsvvavr there was no codes in the diagnostic tool, im just completely puzzled as to why i cant get the fuel from the rail to the engine

[@LMAutoRepairs]

gavin oliver OK... when codes don't help, or in your case no codes, next thing is to look at live data.... What is the common rail pressure while cranking? What is the engine speed while cranking... etc...

[@djollieuk]

lmsvvavr ok ill check that but the other annoyance is my car is a push to start so cranking is limited to the crank the button provides, when we spray a starter spray into the air intake it starts then dies as it wears off so it will start but proves the fuel is not entering the combustion chamber its a 1.5 diesel

[@LMAutoRepairs]

gavin oliver OK But check live data first... you can then test actuators... making sure pressure regulator and things like that are working correctly... Live data though should give you some clues...

[@Buzzbox3rd]

I've got a 2005 megane scenic which was in a flood. The car, when flooded completely shut down. Someone told me the computer will be shot, how expensive is it to replace and fit that in?

[@LMAutoRepairs]

With a second hand ecu, probably not that much... But, I would investigate the rest of the car/engine... There is modules at a lower level than the engine ecu, that water would get to them much easier... It might not be worth the repair if other modules are also gone... Good luck! 👍👍👍

[@Buzzbox3rd]

@@LMAutoRepairs Many thanks for your reply. Sadly its gone to the wreckers, it was a real mess.

[@LMAutoRepairs]

Probably a wise decision...😉

[@siyehsiyeh994]

I'm wondering where have you been some of us sold their cars bcz of this factory issue

[@LMAutoRepairs]

I am here for some time now...😅 👍👍👍

[@devilvlog5658]

Reault Laguna immobilizer light not working all electrical system not working total off please help me?

[@LMAutoRepairs]

Start with the basics... Fuses, power and grounds, etc... Thank you for watching!

[@devilvlog5658]

Total fuse fine...whTs problm I DNT know

[@rmt5820]

Hello Sir! I was on the road and every was ok but I don't know what happened suddenly the car has come off and after that Service light and Electronic fault comes on! The car is completely dead now, mabe you have Experience with this problem? Renault megane2 1.6 16v

[@LMAutoRepairs]

Impossible to say... It can be caused by loads of different things... Try to scan the car... Check fuses, power grounds etc... 👍👍👍

[@rmt5820]

@@LMAutoRepairs tnx the problem was red fiuse box on battery

[@LMAutoRepairs]

@@rmt5820 👍👍👍

[@rmt5820]

@@LMAutoRepairs I don't know exactly what's wrong with my car but the first fiuse from left on the battery it breaks down especially when I wannato start, I changed 3 pieces fiuse and still the same problem

[@LMAutoRepairs]

@@rmt5820 Obviously there is an issue with that circuit...

[@SHADOWDENNIS]

I have megane 2 1.5dci with injection fault when driving from time to time it goes on then i restart tge ignition and its all good again for a week or two. We checked all mehanical parts all is in order. Delphi pump is okay injectors are all good. Common rail pressure sensor is okay. Pressure is okay. Funny is when i restart the ignition completely. So turn off car, lock car and then i start the car is all good like never happened. Sometimes car while driving stop light and injection fault wont turn off and car stops and then I can't turn off the contact for the ignition. Like keycard don't working . Then i open motor lid and there where the box and fuses and wires from battery are i give it a little shake and push and then it starts normally again.. Like wtf lol.3 electricians worked out the car but no one fixed it. Please if you have any advice send help lol. Thank you and greetings from Croatia!

[@LMAutoRepairs]

Hi First, any codes stored on the ecu? Not just on the engine ecu, but on the other modules... Also, if wiggling the cables sorts things out, that means something I guess... Thank you for watching and for your comment!

[@SHADOWDENNIS]

@@LMAutoRepairs no codes everything is fine with diagnostics. Only when ignition fault turns on then it says comm on rail pressure sensor. SO we changed it and then all good for a week or so. My thoughts are maybe to check fuse box where ignition ecu is maybe is there a lose wire or something. Corrosion of relay i dont know. Thanks for reply.

[@LMAutoRepairs]

@@SHADOWDENNIS Yes.. agree... Check wiring etc as well..

[@SHADOWDENNIS]

@@LMAutoRepairs I found big time corrosion on PP2 brown connector. Any thoughts for what is this connector? I can't find any connectors and wire schemes for megane 2 online. Perhaps you know where to look? Thank you. And maybe do you know which connector/ relay are for injection system? Any help is much appreciated.

[@nerminh.6868]

@SHADOW DENNIS Pozdrav druže. Zanima me jesi li riješio ovaj problem. Imam iste simptome izgleda. Renault megan 1.5dci 2003, čudan problem. Svako malo mi se zna javiti poruka injection fault, traje oko 3sekunde i ugasi se, tako zareda nekoliko puta i onda mi piše stop, moram zaustaviti auto. Kada se zaustavim čujem kao bučan rad motora, čekićanje nekad u manjoj nekad u većoj mjeri. I tako ga ga ugasim upalim zna se desiti da odmah prestane, a nekada moram više puta upaliti i ugasiti auto i potpune se smiri sve bude ok. Nekad se javlja svaki dan a nekada, zna biti pauza više dana da se ne pojavi problem. Tako sam imao problem pola godine, da bi samo od sebe prestalo, sad mi se opet javilo prije para dana. Išao sam kod majstora koji su poznati u mom kraju i šire po održavanju pumpi i dizni, kažu vozi dok baš ne učesta. Ali meni se povremeno to javlja. Jedan mi je cak rekao da je pumpa otišla, da bi nakon toga auto samo od sebe se popravilo :) i tako radilo skoro 5mjesci i sad opet imam taj problem

[@dariusalavocius9185]

Hey i have problem with same car same thing battery died changed the battery and now doesnt even crank could it be possible that ecu lost the key?

[@LMAutoRepairs]

Darius Alavocius Hi Doubt... is the immo light going off? Do you have how to scan the car? Thank you for watching!

[@dariusalavocius9185]

LM Auto Repairs that i still didint check will have a go saturday on it. By the way where are u located and if i fail to sort it out how much it would cost around to sort it?

[@LMAutoRepairs]

Darius Alavocius Hi I am in Peterborough... but I do this as a part time... and I am quite busy at the moment...

[@dariusalavocius9185]

LM Auto Repairs found what was the problem. by ecu wires are rubbed through and corroded off. Cheers for ur help mate.

[@LMAutoRepairs]

Darius Alavocius Great stuff! 👍

[@khaledboukerrou8722]

Where are you based mate?

[@LMAutoRepairs]

Peterborough....

[@muhammadsarmad8051]

Please tell how to i get Renault wiring diagram

[@LMAutoRepairs]

Look on Mr. Google...for Renault EWD... Thank you for watching!

[@muhammadsarmad8051]

@@LMAutoRepairs not found

[@muhammadsarmad8051]

@@LMAutoRepairs please help i have a problem Renault fluence 2012 cranking but not start check engine light not showing after switch on

[@LMAutoRepairs]

@@muhammadsarmad8051 Look harder...😉

[@LMAutoRepairs]

@@muhammadsarmad8051 Can you communicate with the engine ecu?

[@zsoltcsaplar8054]

Hi Good Morning to you! 😉I have renault 2004 2.2 dci vel satis, this bitch, does not recognize the all three cards,in the card reader is the card pushes the two pint com up on the screen red imo light, no ignition. Where I suold do i start looking for the error, There's some way to talk? Thanks in advance for your help🤗

[@LMAutoRepairs]

Hi Start by check the card reader... Check power and grounds... But before that, if you haven't done it year, check fuses...

[@zsoltcsaplar8054]

@@LMAutoRepairs Hi thanks, You fix this as well 10A fuse was out! Thank you very much for your help with all of your videos An experience for me😍

[@LMAutoRepairs]

@@zsoltcsaplar8054 👍👍👍👍👍👍 That's great...

[@itstheginger284]

do you have a business email address I can contact you on?

[@LMAutoRepairs]

its the ginger Hi You can contact me here... KZbin private messages, patreon... Thank you for watching!