WE SPENT ALMOST £10K ON A COPART CAR THAT IS NOT AS DESCRIBED! PT1

[@StrawberryYobert]

Hi Rob LIN stands for Local Interconnect Network - it's a communication bus like the CANBUS, it runs simpler things like the steering wheel controls etc that don't need complex signal communications over CAN. The LIN errors mean the whole network is down. Check where the rat damage is in the rear seats, my money is on a chewed LIN wire in the main body harness which must run to the rear under the seats or via the inner b/c pillar floor. The vehicle gateway module/BCM will inhibit start if a required network is down. It may be that the start button itself is working over LIN.

[@andrewevans1234]

This should be top comment

[@gustennant5469]

ROB.....CHRIS.....ROB....CHRIS READ THIS COMMENT. 😂. Fingers crossed 🤞.

[@markaldous4031]

Ex car electrician here, I said exactly this straight away

[@garyoconnor7566]

Read this, nailed it.

[@crashbando2561]

@@StrawberryYobert I've done plenty of car work with this fault it's a lemon boys

[@danglebals8432]

Sorry but until buyers start costing Copart money by rejecting misdescribed vehicles, nothing will change.

[@davidcorlett2082]

I've bought several in recent months and you never get any joy back from them which is tedious when you aren't allowed or it's too far to view the car prior so we take a gamble....

[@melvinphillips786]

Agreed, the problem with not backing the cars that are becoming all too frequently misrepresented by Copart, is that people trying to break in to the business of repairing and selling cars will suffer because no one returns the vehicles. Gents, start returning these cars that come in not as described. Think of the people who come after you.

[@jasonhardy8383]

They wouldn't collect my car they refused.

[@colinevans39]

Just stop buying from them ​@@jasonhardy8383

[@TheSweetasanut]

Keep reporting to trading standards

[@PeterGoodman-nq7zy]

Lin is a Local Interconnect Network, which is a single wire serial communication network with a master the Lin module and up to 16 slaves, wipers, mirrors, etc. The wire will carry a signal voltage that will oscilate. You could trace the wire from the master through to each slave and check for continuity. E. G. Follow the wiring diagram from master to first slave could be the rear door wiper etc some wire cut. Or could be under the rat hole. In the rear seat. Rear damage seems likely.

[@paulhutchins6019]

Hi guys. Just to add that Diagnosed Dan's technical site subscription is really worth your time. He runs his own workshop in Holland and solves issues on vehicles that dealership s etc have given up on. He has now opened up a Technical Database which the trade contribute to. They do also have a phone Tec support line. It all started because he was spending more and more time on the phone helping the trade out instead of working. I note that another subscriber has mentioned this as well. Hope you get there with it soon 👍🏼

[@e-bikerbulgaria]

Diagnose Dan, right up his street. Definitely a comms or power issue you’ll possibly require source what protocol communicates to all the modules and to find the master module, work from there. Some have said, could be one wire, loose negative, or power disconnect. All the modules are good then get your back probe out and continuity check everything, that or scope if the issue corrupt comms. If it’s wires then could be a lot of time .

[@cottrell2909]

Found this......Check your battery ground cable. My friend had a car that was in for a side impact and had the LINBus errors for Alternator, IBS and they replaced the ground cable and cleared the errors and error did NOT come back. When I say the ground cable, its obviously the black cable but its got a small IBS connector and there is some chemical that is used to create a disconnection post accident preventing the charging of battery and LIN errors. Good luck, Tim.

[@986sdriver4]

LIN stands for Local Interconnect Network. There will be multiple components on that network and if one fails or a broken wire it can bring the entire network down. I would get a wiring diagram for the car identify the LIN network and what modules are on it and then unplug them one at a time and see if the network comes back, rescan for errors and see if the car will start. If that doesn't bear fruit I think you are down to chasing a broken wire in the network. Hope you get it sorted 👌 Just seen a diagram for a G21 model and the automatic tail gate function looks to share that LIN network and given your damage I'd check that as the 1st suspect!

[@deniscarr469]

Yes - there speaks a wise man. Sound advice.

[@benmunro6900]

Lin is a slow speed communication line. single wire, gray With blue or green on the older bmws. Something on the network has gone to ground, has a short in it or broken. That vehicle probably has multiple Lin circuits. Start with modules you can’t communicate with the on scan tool. All will be on a common Lin. Lin voltage is some were around 7-11 volts, start isolating modules/harness. Good place to start is the front seats as they are on a Lin circuit. Should also be able to check the voltage at the Lin module and compare it to your other vehicle. Good luck welcome to my life…..

[@jameshurst3279]

The fuse box on the vehicle battery supplies the front right power distribution box using a battery cable with terminal 30 on the connection for the positive battery cable. A relay for terminal 30B is installed on the front right power distribution box found at the A-pillar in the footwell. This relay is activated by the LIN power distribution box which you swapped around. Take a look at the relay to see if that’s working. Quite a few fuses on the front box as well so check those too.

[@stevefinch5890]

Lin is a 12volt system that generally has one master node that can power 15 slaves. Which will be why you are getting a load of other faults on different lin systems. You need to check for a 12volt feed into the master node. That will be your first point of checking.

[@fredbloggs4684]

I think Chris says that he has checked the 12V supply to the LIN distribution module (presumably terminal 30b) at around 18:52. He doesn’t say whether he has also checked the GND to it, rather than just putting his black probe to the metal body. Is the 'LIN N distribution module' also the 'master node'? If so perhaps he needs to check that the LIN signal wire isn't shorted to supply or ground? My understanding is that it's a single wire bus, unlike CAN. Does the vehicle have more than one LIN bus circuit, in which case check them all for these problems. A wiring diagram would be a big help.

[@fredbloggs4684]

Also the guys have identified various components that are controlled by the LIN bus (e.g. radiator blind). Investigating which module is common to the components which have lost communication would be another step forward.

[@LiamE69]

LIN is a single wire local network. I'd be looking around the back seats for a wire / module damage rather than underneath.

[@lutteropjan]

LIN means Local Interconnect Network. It is the network running in the car that connects all the modules. There seem to be a break in that network and therefore you get faults from all the unavailable modules on that network. No idea where to start but maybe a module in the network chain is unplugged?

[@AI-Records24]

Most likely with lin faults what I’ve found is that or broken wiring, and faulty plugs sometimes burnt terminals etc. it’s a time consuming process.

[@sruk]

Thank you 🙏

[@-DC-]

Wouldn't have taken it off the back of the truck if it's not as described, About time people started demanding Vehicles as Advertised from ConPart.

[@jnewzealand4677]

The Lin box is only a comms device which splits signals, the ECM requests a check list which is sent to all the modules via the Lin box , like a pre flight check. The problem appears to be that the request from the ECM is not getting to the lin box to distribute the check to all the different modules. There is nothing wrong with your fan blinds or mirrors etc it’s just the signal request has never reached them and returned an ok to the ECM. I would look at that ECM out link and cable you may also have to bridge the tailgate open sensor.

[@Piner5074]

Copart have pulled your pants down on this I think. They’re getting a truly bad name for not declaring or hiding issues when selling cars. They give a whole new meaning to buyer beware.

[@peterdenson7031]

Found this on bmw forum "Check your battery ground cable. My friend had a car that was in for a side impact and had the LINBus errors for Alternator, IBS and they replaced the ground cable and cleared the errors and error did NOT come back. When I say the ground cable, its obviously the black cable but its got a small IBS connector and there is some chemical that is used to create a disconnection post accident preventing the charging of battery and LIN errors." You may of seen this in a search you done too.

[@bobnashnash7965]

This is a Local Interconnect Network, which is a single wire data line.

[@markswift1477]

Rob/Chris, strip out the back seats and carpets and see what the little varments have chewed, sounds like a wiring issue to me, or send it back to Copart they shouldn’t keep getting away with misrepresentation, you paid top dollar for this car. Best of luck, great content, can’t wait for the next one.

[@jjimmyrjagger]

Check relay Z44 in the Front right power distribution under the glove box. The lin connections all share the same wire to BDC

[@kbytfs]

If I paid that cash for a running and driving car, if it ain't driving off the lorry I'm refusing delivery and it can go back. Letting copart get away with stuff like this must be bad for the industry overall.

[@braddersj3511]

That's not how it works. They'll just dump it there. The courier may have been arranged by Rob separately from CP

[@howardkey1639]

The LIN( Local information Network) is a single wire control system for the car. If you have a break in it, it will cause all kinds of issues and faults to show up.

[@RM-vv9eh]

If you havent already sussed it, LIN is a form of communication between electrical items and modules. I work for a manufacturer (not BMW), and our cars also communicate down CAN and Flexray. I find lin to be for the more simple items on the car. You should have a voltage on you lin wires, i'd check to see if there's anything there, and make sure it's not grounded. The wireless receivers for the keyfobs will almost certainty be communicating down LIN. The car needs to know the keys are in the vehicle, so you'll have antennas front, rear, sides, and overhead. If that's the rear of the headlining i can see hanging down, that'd be worth a quick look. However long before that, i'd be seeing where the rear antenna is supposed to be living. If it's behind the rear bumper cover, then i see an immediate problem 😁

[@RM-vv9eh]

Another quick point... Does the generic reader have a 'Force ignition' feature ? And if so, can you see the ignition on, whilst it's doing the read ? Obviously if you're not getting ignition, then you're going to get a world of fault codes coming back.

[@madelinewilliams8837]

Anyone above Chris’s pay grade must work for NASA!

[@Theylive-y1l]

....have you seen the india moon landing?

[@grahamepigney8565]

LIN is a network protocol used on modern vehicles roughly equivalent to CAN.

[@Snowy-96]

I would not expect the LIN (Lynne) circuit to be the issue with the non start, the LIN circuit is a slow speed network that is used in things like seat switches, door mirrors/windows, steering wheel controls, active vanes etc and I would expect a typical voltage on the signal wire of the LIN circuit around 10v, be better to scope it and look for a good square wave pattern. The fact that you have rodent damage and a load of LIN faults I would think a nibbled wire or module unplugged. You have no gear shift illumination, that is the area I would work on for the non crank, the cars that I work on if there is no P illumination then it wont crank and the dash will dance like yours is doing, ignition comes on then a sweep of the gauges and goes off. Few things to look for: Is there a park pull to get it in neutral and it has been pulled. Have you got comms to circuits like gear shift, transmission, powertrain and ABS. And just check all the fuses, maybe one blown or missing. Good video and I look forward to the auto elecs findings in the next one. I hope Chris had a good few hot toddies for that man flu 😋

[@edward92128]

You need to reject that car. I wouldn’t be touching it with rats having chewed stuff

[@fatwalletboy2]

The only thing id say about not sending it back to CoPart is they they will continue to take money on cars not as described........they need telling

[@AdrianBarlow-x1o]

Check your battery ground cable. My friend had a car that was in for a side impact and had the LINBus errors for Alternator, IBS and they replaced the ground cable and cleared the errors and error did NOT come back. When I say the ground cable, its obviously the black cable but its got a small IBS connector and there is some chemical that is used to create a disconnection post accident preventing the charging of battery and LIN errors.

[@leesharp9646]

Lin is a communication network like canbus but generally is used for less important functions like steering wheel buttons and seats etc so unlikely to be the cause of your starting issue but possibly linked by the gateway between the can and lin networks, go back to your 39 faults and ignore the lin for now and see if there are any codes that point to a module being offline on the can network, also lin isnt twisted pairs like can its usually 3 wires consisting of 12v and gnd and 1 signal wire

[@alanbickerstaff868]

Just a tip as an electrician which you may have tried before. When testing for power supplies use a test lamp as well as multi meter .Some times putting a bit of load on a circuit of a couple of amps may show up a bad connection or wire that is partly chewed through

[@Cheggy-ux5rx]

I’m a vehicle technician.. Way too many times I’ve seen people get tripped up by looking at their LED test lamp and assuming the circuit is ok… Good advice dude 👍

[@mathieubroersma]

Return the car because it is not as described or get some money back. The difference in price for a run and drive and a non runner would be a nice start.

[@paullucas8167]

The negative cable has a current sensor, which can go bad. They don't go bad because of a crash. That was purely coincidental. Check your battery live cable. I worked on a car that was in a side impact and had the LINBus errors for Alternator, IBS and numerous others and they replaced the live cable and cleared the errors and error did NOT come back. When I say the live cable, its obviously the red cable but its got a small IBS connector and there is some chemical that is used to create a disconnection post accident preventing the charging of battery and LIN errors. The emergency disconnect is on the positive cable. It completely disconnects the battery in a crash to reduce the likelihood of a fire.Which can throw up LIN sensor errors. The negative cable also has a current sensor, which can go bad. It may not have gone bad because of a crash or Copart . It may be purely coincidental. Failing this I would remove the dash for damaged wiring.Good luck

[@JBAutosecurity]

LIN is a communication wire, LIN Bus system. Single wire message sent back and forward between several control units to communicate. Could do with tracing the LIN wire from that control unit you found in the boot down the harness 👍🏻 Make sure there’s no ghost fitted too, drive train fault can pop up when attempting to start with one fitted. But does usually attempt to start then cut.

[@ajam6010]

LIN is local interconnected network, it's a kind of CAN network but slower rate of transfer for lesser systems that don't need a fast rate of transfer. Kind of

[@mitchellbailey7122]

LINbus is in simple form, BMWs version of a control network (like CANbus), it’s essentially the control method for a network of devices, likely starting at the Body Control Module then expanding out like a web across the rest of the car (ECU, seat modules, airbag, roof cluster, doors, telematics etc.) Each device that has values that the car needs to know about (sensors, modules like the seats etc.) will be a device or node on that LINbus (network). I’m sorry i don’t have the solution, maybe try and disconnect all the rear modules or maybe near where water could possibly have got in, then scan to see if more come back (just incase 1 module or sensor is causing a comms issue on the network causing none to be detected) Otherwise maybe trying to find an overview wiring diagram of the car then marking which modules are missing on the scan and which are there to maybe narrow down which section of wiring could be damaged. Love your content, hope it’s easy resolved!

[@stevewalker1224]

Have you checked the LIN signal with a waveform buffer measurement tool to see where the signal is breaking down. The rear fuse box could of got water in it hence a loss of signal. Geat a auto sparky out to it

[@Ogma3bandcamp]

'We ain't had a rear end for a long time'. Me too mate, me too.

[@waloodalwaffles6053]

Simple solution as everyone else seems to be suggesting is return it and get your money back… however that’s boring! This is content and an experience treasure chest! Keep on investigating and learn the most it will help you and many more! Good luck with your adventure my friend

[@johnmehaffey9953]

Time for the trading standards to get involved with copart, on quite a few of recent purchases of yours they’ve not sold as advertised, hopefully you’ll be able to do something with this one good luck guys,ps never seen Chris so despondent on a car before

[@andywakefield9826]

I dont think trading standards can do anything. As the cars are sold as salvage. Its not really the same as buying a vehicle from a dealer. It is wrong that they constantly miss lead people. But its down to buyers to reject the cars etc. Start causing them costly problems to force them to make changes

[@stevendempster4871]

@@andywakefield9826 not strictly true. They are still not allowed to lie about the condition of a vehicle. They can be sparing with the truth, but as in this case the car is definitely not as advertised.

[@sruk]

He’s very sick nothing to do with the car

[@johnmehaffey9953]

@@sruk yep I know he’s unwell and feeling jaded but I was just thinking about the rat infestation and that’s the last thing you need when you’re unwell,

[@Mr_Rich1899]

Copart will continue abusing their position until a great number of buyers get together and hold copart accountable for their actions, adding additional damage to customers vehicles and the misrepresentation of vehicles, it just isn't good enough. VERY POOR CUSTOMER SERVICE, IT SHOULDN'T BE TOLERATED

[@misterzee5736]

they took the fb group down so theres no buyers union. copart moving like the USA government!

[@plasticrepair6163]

Rob i have a jaguar f pace with rear end damage the car had no power turned out a fuse on top of the battery like a fuse pack i replaced the whole fuse pack and bingo started up im not sure about the bmw but worth taking a look at the higher voltage fuses hope this may help you good luck hopefully you can get it running

[@williamfence566]

What I've learnt today is to never deal with copart

[@davidmatthews6104]

LIN is local interconnect network and whatz probably happened is copart have lifted the bootlid after the damage and the LIN cable has been caught or shorted putting the car into sleep mode

[@JackOfAllTrades-UK]

It's very encouraging that even you two guys who have made a very successful business from sorting out cars with a whole host of issues, still come up against a brick wall now and then. There is still hope for us mere mortals. Great that you share these issues warts and all.

[@nickycarver553]

Hi rob and Chris Check your battery ground cable. My friend had a car that was in for a side impact and had the LINBus errors for Alternator, IBS and they replaced the ground cable and cleared the errors and error did NOT come back. When I say the ground cable, its obviously the black cable but its got a small IBS connector and there is some chemical that is used to create a disconnection post accident preventing the charging of battery and LIN errors.

[@jimwilson5338]

As much as you don't want to, I'd recommend sending it back to copart, crash damage is one thing, rodent infestation is a whole other situation, not only with the damage they do to wiring, but their pee and poop will be everywhere, in places you cant see or get too. Hantavirus is a serious disease, having worked around rodent infested equipment as an agricultural mechanic, I wouldn't risk it with this car. Not to mention the obvious issues with the wiring harness, finding the chewed wire will be a nightmare, been there, done that lol. I honestly think this car will be a lot more hassle than its worth unfortunately.

[@mickboakes7023]

Not as described. Surely Copart are liable. You need to be refunded and they should come and get it. If they don’t the bad publicity will do them no good at all. All the time they get away with it they will do it all the more. Good luck, get well Chris.

[@General_Confusion]

I know you took a known good LIN module out of the other car and that didn't work, but did you try putting the suspect LIN module in the good car and see if it worked. A different module may need to be programmed into the car. If the suspect one doesn't work in the other car, then the one from that probably wont work in this one.

[@wirdy1]

Not as described, non-runner & yuck, rodent damage, with urine & faeces, that's a straight reject & money back. Poor judgement on this one guys.

[@philipmulville8218]

No, it wasn’t poor judgement - you can’t see what is hidden. But an absolute shocker and the lads have been badly stung. What sort of company is Copart?

[@jameshurst3279]

@@wirdy1 more bad luck than poor judgement seeing as they didn’t know about any of the things you listed

[@wirdy1]

Greed for KZbin content is clouding their judgement, bidding big amounts on some photos of what is clearly a junk motor awaiting a muppet to buy it. I think they will reflect on this purchase & not make the same mistake again.

[@Google_Is_Evil]

The LIN bus is a "low speed" communication standard, like CAN, but then slower. Depending on the manufacturer and specific vehicle, there can be just a few modules on several LIN buses, or many on just one or two buses. The thing with buses is, that one broken connection or device on the bus, can knock out every device on it, or split the bus in two, giving you only access to the half that is still talking to the rest of the car. It would appear that at least one LIN bus is not able to communicate with the rest of the car. Typically, there is a body control module that has both LIN and CAN and does the "routing" but this again depends on the manufacturer and model. Generic: if you get a fault code for a LIN power module, chances are that this is the root cause of your problem. Not getting 30B may also mean not getting a proper ground, since 30B is measured against ground. Something to investigate for certain, especially since half the car in the rear got stripped and you are bound to have some ground points disconnected or at least bolts not tightened enough. Check not just your powers like you did, but also your grounds. Having proper wiring diagrams and the knowledge/skill to read them helps immensely here, as well as having equipment to "read" the CAN and LIN buses to see what is happening on them. If you have a good car electric diagnostician around, it may be smarter to pay him a couple of hundred quid to find the cause here. They typically have access to these and know how to use them. You aren't "on the clock" in the classical sense, but your time has value and you could spend it on more profitable and FUN things than hunting for something you don't know enough about to be efficient and effective. I am sure you will find it eventually, but you have to stay sensible.

[@alanduncan9204]

I would advise getting a Tone Tracer. A simple tool that I found invaluable in my work for tracing wires, Finding shorts or breaks in electrical and electronic systems. RS components have a simple to use one for £75 - number is RS PRO RS1013 Tone Generator, 1000Hz Tone Frequency

[@markfisher8704]

troubleshooting a LIN bus system is to locate the master node, which is the device that controls the communication and timing of the LIN bus network. The master node is usually connected to a higher-level network, such as a CAN bus, and can be identified by its higher pin count and voltage level. You can use a wiring diagram or a schematic to find the master node and its location in the vehicle.

[@michaelg9348]

Send it back guys, not sold as advertised

[@mercedes_and_more]

In VW there is a central gateway module under the rear seats. Think of it like a central checker that all the other modules connect to and then it tells the BCM all is good. In Mercedes there is one in the front dash and one in the boot. I suspect the latter is the case in the BMW. You’ll need to take out the seats and carpets and trace all the wires in the main CANBUS channel (normally big black truncking) running to the front of the car. There will either be a broken wire or a damaged module, my guess is a wire in one of the modules under the seat (fuel module springs to mind)

[@paulriggers1558]

lin is a minor form of can system, normally just controls mirrors, cameras, seats etc, nothing in that system USED to interfere with running, but i am a few yrs behind on BMW lin systems... disconnect all the tailgate wiring [ at multiplugs in the rear 1/4s hopefully], sounds like lin is shorted out on 1 wire, shutting down entire network. you may possibly need "signal injector" diag kit [hi-tec low power safe power probe]

[@stephenwarner6596]

Try replacing the battery earth cable. It has a smaller connector with a reverse current protection device the protects the LIN bus - Intelligent Battery sensor (IBS)

[@davefrench3608]

That car is dreadful. To advertise is as a runner is plain misrepresentation, Copart need to sort themselves out.

[@eggy1962]

Any other business…..the lawyers would be on it for mis representation

[@briansharpe7583]

As someone with experience with mice nesting within the workings of supermarket-sized fridges, they would not only cause problems by gnawing through wiring but frequently cause electrical malfunctions by urinating around components.

[@101thenuke]

Afraid get all the seats and carpets out, Will be broken/Chewed wire, LIN is a singlel wire communication protocol between multiple computers. wiring Diagram and Oscilloscope would be handy im afraid.

[@discoequipmenthire]

linbus is similar to canbus but a lower speed communication, it generally communicates between low end modules such as seats and HVAC.

[@kingdude3749]

A LIN (Local Interconnect Network) bus fault in a BMW can be caused by a number of issues, including: Faulty exterior rearview mirror electronics, A frame taking too long, A checksum error, Sync problems, and LIN ID parity. Here are some things you can try if you suspect a LIN bus fault in your BMW: Check the mirror glass: Inspect the side rearview mirror glass on both sides for damage. Test the power windows: Test the operation of the power windows, side rearview mirror adjustment, and side rearview mirror folding functions. Perform a vehicle test: Check for faults using a vehicle test. Use an OBD2 reader: Get access to fault codes using an OBD2 reader. A diagnostic tool that's tailored for BMWs can provide more precise and specific fault codes. The LIN bus is a low-cost, single-wire serial protocol that allows communication between components in modern vehicles. It can support communications up to 19.2 Kbit/s with a maximum bus length of 40 meters.

[@GoWstingray]

Chat GPT?

[@daveadi2768]

I’d definitely plug all the broken stuff back together as best you can and take it from there sounds like a missing link a network connection, newer BMWs are a nightmare for this stuff now

[@peterfreeborn2827]

rat damage is the worst! you will have to take the back seats out to inspect the main loom going to the rear, also wouldn't be surprised if the dash will have to come out as they love to nest up under the dash!.. a good channel. shows how much the salvage trade can be a rollercoaster and the need to know most aspects of the car trade.👍👍

[@liamsimister3278]

Lin bus is similar to can bus it's how all the modules communicate with each other. Look for twisted pairs or striped wires. Also check the boot lid and rear light clusters

[@paulozy4364]

Lin bus runs tailgate motors and rear blind, a broken llin bus wire would disconnect any up stream devices causing other logged faults. Also worth disconnecting small plug on pyro fuse and read faults as that can ground out lin bus on some cars.

[@Muussaah-gh9zf]

Check the wiring under the rear seat, lin network wires pass straight through and I’m certain there will be a break in the wires around that section. I believe on the g series it runs down the right side

[@bobnashnash7965]

I think you will find that all non essential equipment is on the LIN bus such as radiator grills etc, what need to do is scope the LIN and see if there is data on it. If no data on the LIN then you have short to ground or positive or you have a module shorted. Regards Bob Oxford Vehicle Electronics

[@GamerPolygon]

If something on the Lin bus is faulty then it can drag other things down. As you have rad shutter and alternator faults try disconnecting one at a time and see if other fault disappears. If you suspect a short in the shutter unplug that first clear codes and see what returns, if it’s just the shutter you know it’s related to that

[@kevingould6725]

Rob if you haven’t sorted the start problem. Here is one from left field. If the car is an automatic then look at wiring to ECU from gearbox selector. Hope Cris is feeling better.

[@vincetaylor944]

The yard looks like the BMW owners meet 😂

[@G4RY1159]

😂

[@paulchinnery6560]

It sounds like the Lin Bus wire is shorted to ground somewhere. This will stop any communication on the bus, therefore all modules are showing faults. The LIN master module typically serves as gateway to the CAN bus, thus when you scan the car non of the devices are reporting back.

[@TheOldRogue]

Centre console out and check for wire damage, bcm and other modules are probably under there. The errors are because 1 of the modules is not getting a signal and cannot communicate with the others cause many, what look like, faults.

[@OK247OK]

The only RATS in that car that have been are the CONpart lot

[@sleepysamk1400]

They nick the fuel out cars and god only knows what else. Untrustworthy is CONpart

[@xox101]

This sounds like the network cable has been chewed by the rats. LinBus is the network cable connecting all modules in the car and goes back to the ECU. May be an optical cable as well. It runs in a circle and everything is connected to it. If there is a break anywhere in the network cable then you will get myriad faults showing up. Think network cabling for your home PC's, cameras, IOT equipment etc, if the main network/ethernet cable coming from your router or switch is damaged then all devices attached to that cable even if they are connected to other switches or hubs will not work or may work intermittently or at a slower speed. A few people have already mentioned this. A full strip down and inspection is needed. Rats and mice will get everywhere in the car and will eat anything. Good luck.

[@johnshaw4140]

Good luck guyz , get better soon Chris . Me and my partner have both got manflu at the moment , and we all know that manflu is the worst sickness possible

[@christopherwright1795]

Wild guess wiring to the fuel pump , as that’s probably where all that rodent damage was , and knocked out other feeds

[@jesscourt9068]

I had a mate with a Volvo that was written off due to mouse ingress. It was eventually traced to under the centre console where even after the loom was changed it still developed faults. The little buggers were still in the heating ducts chewing away even after weeks of being worked on. Get a CAT Scan. Good luck.

[@jasonhardy8383]

Module under centre console supplies several different modules could be worth a look. If I was a mouse I'd love that as my house...

[@mikestickersm3mxb279]

It sounds like the rats have chewed wires connecting the cars network(LIN) to modules causing all the codes. See if you can find where the modules are .I would strip the interior, Good luck!

[@ashlockett7138]

Something that is on the lin system is shorted out and it's stopping everything that's on the lin coms from being powered up. I'd be disconneting all the obviously damaged parts at the rear as if its not connected it can't be shorted out. Then the lin should come back online.

[@leohorstmeier]

Confirm that your LIN module is good by trying it in the other car

[@stekwack]

Think you may need a better scan tool with the topology of vehicle ecu's to help find this fault. Does look like a rat has chewed through the 12v signal wire on a lin network cable. Topology should show you the system layout, ie DME lin module - battery sensor- shutter vents ect. First module after dme do all module on that lin circuit show a fault if not it could be a chewed wire between the module that comunicates and the module that does not.

[@alexandersheppard674]

Check your battery ground cable. had a car that was in for a side impact and had the LINBus errors for Alternator, IBS and they replaced the ground cable and cleared the errors and error did NOT come back. When I say the ground cable, its obviously the black cable but its got a small IBS connector and there is some chemical that is used to create a disconnection post accident preventing the charging of battery and LIN errors.

[@franklaumen77]

Lin is a single wire serial communication network. Could be a single short to ground somewhere...

[@fredbloggs4684]

and although Chris has checked for 12V at the LIN distribution module, has he checked for a good ground there, rather than just putting his black probe onto the metalwork.

[@stevenjones19-m8i]

Hello Rob and Chris,great video and a nice car.have you tried the battery,with things keep coming up with the dash.fingwrs crossed you sort this problem out to get the car running.

[@chrishill1219]

Hi lads, so sorry for you're headache. I'am sure you've got a thousand brains working on this one and routing for you. Remember an american channel the chap having a similar problem and it was the telematics box, but as you say something has disrupted coms. I do watch KZbinr Rob at RMS diagnostics and wondered if he'd help. (Just up the road from you) Good luck.

[@GoWstingray]

I saw a video not to long ago where a Ford ranger or something like that had an issue causing things like the infotainment system to play up, Windows and accessories etc, 3 garages changed a number of components and got no where. The tech in the video eventually tracked it down to water in one of the rear lights that was controlled by.. you guessed it the Low speed bus. Now that issue was different to yours as it made other modules on low speed bus play up, but anything else that was on the High speed can bus were not effected. I'm not sure if the car used LIN or something else but there's a good chance it was and he just explained it as the low speed can bus to dumb it down. My point is, things like engine control and safety equipment don't use that bus, its not designed for them, so it stands to reason it shouldn't cause a non start issue, I have a feeling the LIN bus issue you have is a red herring for what your trying to fix, sure there's a fault on there but its had a whack on the rear end, there's a good chance you have another issue causing the non start. Well just a logical thought.

[@deanwelsh5702]

I had a mk1 fiesta that would not start like this . The screw in the points had come lose . You could try that 😂

[@davidcook6064]

Happy days 😄

[@Hilux-jt6bo]

How did they get it on the lorry? especially being on the top, too much of an angle for the fork lift I would think? They obviously knew it wasn't running or it was driving onto the transporter. Could the driver shed any light to help?

[@davidkemp-ej7ur]

Personally I would send it back it’s not as described your time is to valuable to waste time on this car.

[@marcduthie4327]

What a bugger you can't sort it. Great work on trying to sort it. Love all your videos. Have a good week. Marc from Australia 🇦🇺

[@danwilliams6776]

I'd definitely be having the seats and carpet out to check for damage.

[@NatalieHolmes-o6x]

check the fuses in the BDC control unit in the drivers side footwell behind the kick panel. The BDC is the main control unit where your LIN communication comes from 😊

[@redsidebiker]

Send it back Guys. I'd take the "World of pain" return to CoPart instead of "playing with it".

[@owenhewitt5136]

FEM module in the passenger footwell left handside, youll need to undo the plastic under glove box, then the panels come off, passenger step plastic will need to come off first

[@essexlad860]

Theres a rat in my beemer what am i going to do? Catch it and deliver it to copart is what!😂

[@johnbickle4654]

you have a short to ground on the lin bus and it will pull the network down , try unplug rear lights and harness going to the tailgate first have a good look round that harness fault will be there

[@MINIMOTOMADNESS]

when chris said nothing jumps out to me,i thought never tempt fate....

[@williamlloyd3769]

LIN (Local Interconnect Network) is a network protocol used for communication between components in modern vehicles. It is a low-cost single-wire serial protocol that supports communications up to 19.2 Kbit/s with a maximum bus length of 40 metres (131.2 ft). PS - madding that there is no obvious fault. Perhaps part of a wire bundle was crushed?

[@plasticrepair6163]

Rob it's the red box in the boot battery distribution fuse box hopefully there's a fuse blown inside it