I have an LR4 with a failing battery which AAA seem unable to diagnose correctly. As a result the voltage lines to all the electronics are affected when trying to crank the engine. This glitched the smart key system causing it to hang, and not being able to start the vehicle at all. This solved the smart key read problem. I guess it's a hard reboot to the system in removing the fuse and reconnecting it again. This video saved towing and paying through all orifices to a Land Rover dealership. Thanks and good work!

Dude thank you so much I had a similar issue after I washed my vehicle (2011 RRS HSE Lux edition). Took apart the back panel like you did, unplugged the "black box", didn't see any water or corrosion but once I plugged it back in everything worked fine! Also, my key fob is old and busted which is why I first assumed it was a key fob issue... It was not. This solved my problem thank you again!

Lots of work to find the problem. But you might have gotten lucky. You pulled F5, not F17 (freeze frame the fuse layout). 'IF" pulling F17 "might" have generated a logical reset in the system, it may have started fine giving you a false fix. Then, if you found no further problems at the time you might have delivered back to the customer, only to have the problem show up when it got wet again, leaving you with a come-back or worse (a bad reputation if they decided to take it elsewhere). It happens to a lot of us. Well done video. Thanks for sharing. P.S. I wonder if the KVM problem that's being investigated might be the caused by this same issue of water getting in the Parking Aid Module. It 'would be intermittent', and changing the KVM wouldn't fix the problem. 🤔

Absolutely spot on diagnosis. Great find, goes to show that when bundling the systems together and they all relies on a good line of communication that any disturbance can rear it's ugly head as a no start.

first you pulled the wrong fuse

Can't believe you guys can actually criticize this gentleman's effort to help thousands of people for free. You go to the dealer with this and it will cost $2500 to $5000 by the time they are done, trust me I know first hand. Wish I had seen this before. This video is amazing and all I can say is wow. EXCELLENT WORK SIR. And by the way, that corrosion will shut everything down eventually. Dealer tried to clean it up for me and still will not work. Its obvious water and electronics don't mix well. I had all the same symptoms with the radio, navigation and dashboard going out after the rain. It was caused by the Phillips Auto Glass after they changed my windshield. Had the dealer replace it since the car was already there.

The price you pay for features you really don't need.

Only ever lease a Land Rover product id never own another outside of manufacture Great content my man 👍

Man this video help me with a week long nightmare. Thank you bro

Bro saved me a lot of money thank u for the tips..unplugging the battery for 30 min did the job for me..

Great video and documentation. Keep them coming!

You find F17 and pull out F5. Great to see you find the fault though.

Wish I could give you 100 thumbs up.. I had this issue in the discovery 4 (driving me mad) but the 1 minute fuse replacement worked for me. 😃🙌🏾 Thank you for the video..

Great diagnosis, Im glued to your channel. 👍

Some people saying he removed the wrong fuse. No! Watch carefully, He removed the correct fuse #17. It's a 5 Amp fuse not #5 fuse.

Well done range rover for mounting units upside down 🤦🏻‍♂️ I was always taught to mount wires out if bottom so water doesnt enter.

Thanks! Stuck in a parking lot watched your video and was able to drive home

Your fuse 17 trick solved our ‘no start’ issue while 120 miles from home. Thank you (2013 RRS). Shame on ‘Engineering’!!

Land Rover. One of the worst makes to work on. Great find! Heck of a job!

Just sorted mine by removing fuse 17 and replacing, thanks for the advice

I hope customer appreciated your service and didn't cry when you billed them. Also you needed to be paid whatever you asked. Some people just don't understand how involved these job get all the time... great video..

Wow. What a find! I c u broke out the old Maxi Das. Still a very capable tool. I like how u went to the com lines. I learned a lot in this one. For me, never work on a Range River, I mean Rover.

I heard horror stories about poor Land Rover reliability but took the plunge and bought a CPO 2012 LR4 (7 years from time of service/100K bumper-to-bumper warranty, which gave me comfort) and had zero problems with it. Then we bought a 2016 Range Rover Sport and again have had no electronic problems (but the rear hatch sometimes won't close tightly using the motor and has to be slammed shut, which I think is a strut or gasket misalignment); it's a great car. Yesterday we bought a Range Rover (CPO). I think reliability of Land Rover in general has improved significantly since the marque moved away from Ford and Tata Motors invested billions in the company. Service at the dealership has been good. This is in contrast to my 2015 F150 with the 3.5 Ecoboost which developed gasket leaks just after passing out of warranty requiring a complete engine rebuild that took three weeks for return to service.

i know this video is old, not trying to add any negative energy. just wanted to point out you pulled F5 fuse instead of F17. however, I do appreciate the follow thru with the rest of the diagnosing its helping me find my tail with my customers LR4

Well diagnosed. Lots of bizarre issues to be had on can bus vehicles. Scoping out the can high/low lines a must. Well done on getting to the bottom of this tricky issue.

There is a back up slot for the smart key under dash for emergency start from the dead fob battery.

A very very useful video! You worked hard to find that obscure fault. Well done and thanks for posting this video.

looks as if the CAN bus can wreak havoc with our 'newer' vehicles...thanks for your insights !!!

Awesome video man it looks like it’s coming in through the roof drains that’s typical for those and Cadillacs

You make honor to your name, "Advanced Level Auto".

Obviously some things never change. I have the 2014 Range Rover Sport and it has got a rear quarter glass or liftgate seal leak, which has run down inside and taken out the Differential Control Module. Great design and engineering foresight caused the factory to mount the module upside down, which then makes the pressed metal cover form a cup just perfect for rainwater collection. Still waiting for the new part to get here after the attempted shafting by the local RR importer.

Another thing is why would people give videos like this a thumbs down.. your given out free knowledge ... just my opinion 🤷 😌

6 1/2 Hrs later "things went from 0 to 100 real quick" dash stripped down😳😳 it sure did! From fuse and battery to inside the dash. Another great vid! Key em coming.🤘🤘

Man this is a good 1 brother.. please keep your videos this long makes me think as I’m watching

Great detective work! Congratulations. I wish I had someone like you over in Switzerland…

Great troubleshooting! Even though some say you pulled the wrong fuse you fixed the cause not the symptoms. Any customer would love it if they didn't have to come back for the same issue! Word of mouth is crucial and I bet you got lauded on this. You got my thumbs up!!

Excellent diag.Range Rover has a history of many issues. Nice looking car but mucho problems!!

I would wager the leak is coming from the tailgate as these are a known weak point on most Land Rover/Range Rover products. Especially if the drainage is compromised ir ‘overwhelmed’. Another possibility may be from the sun roof or roof bar areas. Range Rover trunk areas are favourite areas for placing sensitive equipment and these issues could also be caused by an over zealous ‘valet’ as I experienced with an 2009 TDV8 which affected the compressor electricals which were located in the spare wheel compartment below the trunk floor. All in all a great diagnosis.

Interesting video, a good one to keep in mind. As others have already said though, you pulled the wrong fuse which could have completely messed with your direction of diagnosis, but luckily it had nothing to do with that land rover bulletin you found anyway.

I am in awe of your skills and persistence...

You make everything look so simple

Hey Eric nice diag. I tip. Sometimes,not every you can pull fuses that power modules your trying eliminate. That way you dont have to tear everything apart. Ive been very successful doing that many times.

That was great GOT THIS PROBLEM A FEW MINUTES AGO. I was able to resolve the issue in 10 minutes Thanks bro

Thank you for this. We were stranded at the mall until we saw this video ❤️❤️❤️

Good mechanical engineering schools alway produce the best engineer.........

Another fantastic video from you guys, I am really enjoying it.

I'm having the same issue with my 2010 range Rover, tried everything you did here but still won't crank ,😭

The 5min fuse remedy fixed my issue Thanks for the video

lol glad you figured it out but you pulled out the wrong fuse 😂

Excellent work man! Extremely impressed by your video! Thank you for your time! Question, What would you say an estimate of the cost of repair would be? I understand you did not fix the leak, but an estimate of everything would be great! thank You!!

Great job bro. That's an awesome video and thank you for following through until the end.

Exact same problem right down to the ccarwash..2010 Range Rover . Unplugged the Parking Aid Module. found the corrosion. started right up Thank You!!!f

Pulled fuse 17 and got my wife's car home. It obviously has more problems, but you saved my stranded wife. We bought the most unreliable brand known to man, and surprise! It's been the 2nd most unreliable car I've owned behind a 1976 MG Midget.

It's a Rover, Engine won't turn over, It's a Rover. Interesting that you could just "pluck out" the offender module and all was good. I thought they all had to talk before anything could happen. Nice one.

One of the few you tube😀 videos that actually kept to the point and followed through to a conclusion. 10/10 Great explanation. Thank you. Just curious, was your parking module installed upside down? Mine was and was full of water.

Excellent diagnosis and repair.

Apart from pulling the wrong fuse at the beginning - a great video.

Good diagnosis. Hope didn’t lose your shirt on this one! Customers really don’t realize how complex these new vehicles are, and are going to get!

Excellent find

Too good a diagnosis Man,,,,,, very helpfull indeed ! My vehicle is in same condition right now . Let me check it out if it works or not .

It seems to me that the more expensive the vehicle is the more susceptible they are to water intrusion and corrosion. Especially European cars. I follow Keith DeFazio and Ivan and they are forever finding water and corrosion on the computers and multiplex units. Nice find good video thanks for your time and showing us the problem 👍👍👍

I really liked your explanation very good job

good shit , A smart mechanic not a parts changer. test dont guess. excellent job!

That was fuse 5 you pulled, not 17. Look at the label on the cover. But well done for finding the real problem. 👍

Well done man. I got to ask, how and where did you get the how the correct waveform should look like?

Awesome diagnosis, this is next level!!!

Great video and excellent diagnosis, sir. Look forward to fresh content! Take care!

a tip for anyone, thja red tool is there specificly for pulling fuses

excellent demonstration and video; cool to see the problems can be found...most times :)

Hello nice job.. I have fixed a ton of these vehicles, the water gets in from the sun roof setup. Most times the hose draining the water through the back. Regards

Nice diagnosis!👍.

Great job

DiagnoseDan has one like this with similar issues.must watch .it's funny too.great job Mr Erik.

Thanks buddy. That was useful for me👍

You are awesome I'm New in the channel tank you for that

Very good and useful to learn new things every time. Thanks

Nice catch ALA👍 RealFixesRealFast used a smoke machine to find water leaks into a car...just throwing that out there...

Brilliant Work,,Very Impressive 👍

Good thinking Eric 👍👍 Nice diag & fix

I was literally gonna give you the same answer you got... I’m glad I forwarded it to the end lol ps they all leak cover the modules with plastic and you’ll save the customer money since the amp and other modules are down there

Now I have a 2012 Range rover sport. And for some reason my back up camera isn't coming on. Does it work with a fuse and could the fuse be the problem? Or can I just disconnect my battery like you did in this video to reset everything to get it back working? And keep you great to know videos come to us here on KZfaq!

Proper mechanic, doing proper problem solving !! 👍

That was great diagnosis 👍👍

Very impressive fault finding skills! Great work.

well done from zimbabwe

saludos desde Republica Dominicana . muy buen video no entiendo ingles pero por los puntos a los que fuiste ,creo ya resolveria ese caso de una vez

That was my exact issue!!!!! Thank you so so much

6:34 That bottle of motor oil is always come in handy!

Diagnosis: its a land rover

3:27 Removing fuse with pliers - isn't that the fuse removal tool just to the right of the fuse ?

Oh man, I have this issue but unfortunately its not a water leakage issue, its just some module that has decided that its had enough. Now I am racking my brain to track down this module and I don't even know if its not just a bad KVM because the SDD tool shows only the BCM and IPC modules as running. Hard to track down when you can't put the ignition in the on position!

Nice tracing and problem solving

Fantastic video mate and very interesting diagnoses

Thank you for sharing this knowledge.

Hi, thanks for your video I watched it and was very interesting, although it never help me as I’ve lost my keys and car is dead locked ( no spare 😭), I have liked and subscribed now going to watch your other stuff, happy new year anyway 🎉 from Edinburgh Scotland 🍻🏴󠁧󠁢󠁳󠁣󠁴󠁿

Absolutely top diagnostic skills

So the error message was incorrect - wonderful !

Simple solouton ...buy a Land cruiser

And when u disconnected the wires where the water was going in do u need a auto programmer to program the wire back to car?..

Smart guy. Helpful tips