BMW ECU "Hard Reset" and Remove Codes from Computer ECU for all models
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- Опубліковано 24 вер 2024
- How to hard reset the ECU in all BMW models. This is the easiest way to rest the codes stored in your BMW's ECU computer. Make sure the terminals are disconnected from the battery when you attempt this.
Learn how to reset your BMW's ECU and clear the check engine light with our step-by-step guide.
Reset ECU, Reset computer, clear codes, clear faults on you BMW simply and easily, no scan tool, no scanner tool needed.
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This is called a capacitive discharge. It doesnt "drain the juice out of everything", it resets all of the modules in the car by forcing them to essentially go to sleep, and come back when you disconnect the connection. We do this at Subaru as part of the diagnostic process.
I mean the description was explaining in layman terms. Capacitive dischage - removing the juice, yeah I instantly thought that when he explained it like that. Capacitors essentially hold electrical energy so he did remove the juice from the system.
Thank you sometimes people want to discredit other ppl by tryna look smart. But yeah, iss cool
Bad comment
Funny how many people ask..Will this work on or will this clear...?
WHY NOT JUST DO IT AND FIND YOUR ANSWER IF IT WORKED OR NOT????? LOL LOL
Or you could just run a wire from positive to negative connections without being connected to battery. Make sure battery is disconnected and turn on your headlights, that will drain power out of capacitors. Thx
Thank you!
True! Thx
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@@joshtremblay9652 both
@@joshtremblay9652 don't touch the terminals together while connected to battery
I'm not sure if you still respond to comments but I have a 1997 BMW Z3 The ignition went out so we wired a button in still had to have the key in the ignition to get it to work it worked for almost a year All of a sudden I was driving and it just died. When I flip the switch to go into accessory 2 it won't go it just goes into accessory one. It will crank but not start none of my dash lights come on. All the lights that come on in accessory 2. By accessory one comes on for my stereo
Thank you for sharing your experience. I have a question, I own a 2016 BMW X5 with rear air suspension. The car dropped and I have replaced both rear airbags and sensors and the entire compressor system. Started the car and nothing happens the rear just sags. Would this type of reset work? I recall this happening one and a shop put the car on their computer and the reset the system restoring the ride height of the vehicle. Any thoghts? Thank you
I believe there is a setting that needs reset. Not sure right now if it's a setting in your car or something you have to reset via a diagnostic computer.
From the sounds of it a diagnostic computer would give you what you need.
I was looking for a BMW master reset and this pops up lol
Will this clear codes from frm?
N47 116d had a 4b90 low rail pressure on start and only getting 150-250ish bar fluctuating at rail so changed hpfp (cp4.1) cam follower and pump head which gives me 400bar at rail now but still no start. Only get 0.3v signal on rail pressue sensor with ignition on and increases to 0.8v on crank, 5v and ground are good. The rail pressure drops away almost instantly too.
Does the dde need a reset, faulty sensor. Thoughts please really appreciated.
I probably need to give this a shot myself with my 2014 BMW X. I cant sseem to diagnose the issues ita been throwing at me. Im thinking it's probably the DME/ECU but there's many different things that could be wrong because there's a lot with the same symptoms m High Pressure Fuel Pump, knock sensors, cam sensors, mass Air Flow, Map sensor the list goes on. Maybe this will buy me some time.
Get a good scan tool. I'll be doing a video on what I use and it's a good starting point for diagnostic tools besides the laptop software or a GT1.
You can see real world data from the ECU.
According to the BMW mechanics SHOP MANUAL . BECAUSE OF ALL THE DIFFERENT SENSORS THIS UNSAFE TO DO. RUN A DIAGNOSTICS ON THE ENTIRE SYSTEM AND YOU SHOULD FIND YOUR DRAIN IS USUALLY COMMING FROM THE COMFORT ACCESS. OR THE FOOT WELL MODUAL
In this case it was the alternator, bad diodes caused the battery to drain while not running.
No amount of Diagnostics could have found this, After the hard reset I had no problems, and had to either pull fuses to see if the amperage dropped, or get the volt meter and test components manually.
Will this work on my bmw f13 3 series GT? Error codes: vehicle configuration inconsistant, parking break failure etc when i have no electronic hand brake. Basically also an identity crisis as car thinks its a 1 series
Hello, i have the exact same issues. did you manage to fix them ? thanks a lot
Will it work for my 04 325i
P.s my aux fan wont come on at all I was told it might be that the memory stored the fault code and needs to be cleared out
This will reset and codes you have. You can troubleshoot from there. If you need help past your questions here.
Good job
This works great on Tesla model S
Will This Work For An X3? My DME Is Throwing Codes That My Car Is Overheating And Theres Also Open Logs For My iDrive
Salut ! How many minutes ?
Where is the other end of the jumper cable connected to?
The jumper cable is attached to the disconnected (from the battery) positive and negative cable ends.
Great video. Question. I changed my crankshaft position sensor. Plug to the sensor was broken when I reassembled it and caused limp mode. and now my transmission won't leave 3rd or 4th gear. Not sure which gear but won't go over 40mph. I installed a new harness with new plug. Transmission still in the same mode. Do you think a hard reset will help
I’m having the same issue too
@@codychartier-hajas8149 I'm still dealing with it now.
@@obrianward4190 did the hard reset fix it ?
Hold down your gas pedal when the car is an ACC mode for 30 seconds to 45 seconds. This may help. I watched a lot of other videos on UA-cam that helped.
Mines doing the same thing right now did you ever find a fix to it
Hiya,
My x5 e70 is 2011, after I accelerate from 30mph or 40, a message pops up saying (engine fault, reduced power) and engine management light comes on until I get home and take key out then desappears then happens again. One more thing, when I stop and close doors with remote, after few minutes car starts alarm! Please help
did you manage to fix your issue?
I have a bmw x3 2006 have been trying to reset at replacing the part for emissions, I unplug both terminals of the battery left it overnight with the headlights on everything on. Still would not reset. Those coats would take forever to disappear like I don't know how many cycles you have to drive, over 20 maybe, I don't have that much time to BMW messed up with this.
looks like it doesn't work on my f30 :(
Why you need to research issues before taking hearsay as gospel. When you have to change a battery in the MW X5 (from 2005 with E53 or N62 chassis but pretty well any BM after 2002) it is important that you update the ECU to register the change. The main reason for this is because the ECU stores electric energy which varies from the battery power. Registering a new battery also updates the computer controlled alternator. If you do not do it, you may set in motion the Diagnostic Trouble Codes (DTC) / Malfunction Indicator Lamp (MIL). Not doing a battery reset may cause other problems like shortening your battery life or in the worst case, damage other electrical components. And that will cost you BIG-TIME.
I agree, registration of the battery is important and I did that. This was one of many things I checked. In this case the problem was actually the diodes in the alternator, the gates wouldn't shut and drained the battery.
I have a video about parasitic drain and how to test the alternator to make sure your alternator is good.
Good video
Hi I have p1639 code come up and engine light on after taking my air box and MAF sensor of to get to a seized top water pipe on my BMW 325i 2006 ..any ideas please
I have diagnosed the car and it comes with lean communication code . Can anybody advise me on what that is ?
All this did was reset the clock on my bmw f30
i have bmw e90 vehicle i have error not reading eprom and it is not deleted is it deleted this way
If your eeprom is dead or wiped this probably won't help, but you can give it a try.
Eeprom errors are usually resulting from a bad flash from a device or the eeprom chip died, which means your need a new unit.
How do you reset a BMW E36 TDS? year 98
Just for people wondering what he did , your connecting the two cables pos & eg that go to the battery , but doing it whilst unplugged from the battery , he only had to remove the negative cable from the battery to achieve this , so had 1 jumper cable connecting these two pos & neg cables together drains g the system , you don’t do this whilst both connected to the battery unless you want a flash & bang 😮, also only disconnect the negative terminal cable first as if you do the positive it can blow sensors
It didn't work, does it reset the red steering wheel lock? Maybe I did it wrong?
Red steering wheel lock could be a bad clock spring, does your steering wheel buttons work, do you hear grinding when you turn the wheel, does your horn work? Is the airbag light on as well?
i have BMW 528i e60 2009 - How to disable Gong from Speakers Complete ?
It's part of the infotainment, you may be able to turn it down or off from the control panel.
@@Jay-May No way ..from panel :(
I just got a “ chassis function restricted” code will this reset it
It might be a faulty sensor, you can try the reset, but if the sensors in the shocks are bad the code will come back.
will this reset permanent code?
It will reset the ECU codes, if they come back up obviously trace down the problem. Post your codes and I can help as much as I can based on the 23+ years of owning BMW'S.
@@Jay-May i have p02CB or 429A
Do you still repair BMW cars?
What year is your X5? I want to do the same thing with my 2014 X3.
2007, but this will work with all models, what problems are you having?
@@Jay-May cluster malfunction
@@huawang1893 Hi did u sort out your issue
@@leandrenmoodley2892 yes. Thanks
@@huawang1893 hi,how did u fix it
HI Buddy, Did you find what was draining your battery. I had the same issue and it was the alternator brushes draining the battery. replaced the alternator and all was sweet.
Ended up being the alternator, the diodes went bad, replaced the alternator and things were fine.
I just replaced my alternator on my f30 and I tried to reset computer and engine light came back on
Mine is the CCC staying awake
Where do I put the other end of the cables? Just to the body or chassis of the car?
The way I understand it is, take red side of jumper cable connect to the red side on the car then connect the other red end of the jumper cable to the black side on the car , do not connect black side of jumper cable to anything, and disconnect your red and black wires from the battery before connect jumpers
@@ninetyseven7656 super😀 it took me a lot of videos and digging to find YOU. I mean I get the videos but I wanted to make really sure on what I needed to do. Thanks
@@jaguarblack4332 did this work for you bro? I want to try it…
Connect Red Positive to Red Negative but dont let either side touch the battery terminals, its to Short the power by grounding the positive charge black + red + no 12v battery = drained charge
Thats all folks 😂
Will this work on a 2006 330i? recently bought it and came with a burble tune so was told
to reser the ecu would do it?
Sounds like the ECU is "tuned" or programmed. You would have to reprogram to fix that, a reset would just remove the errors and settings not the ECU programming.
Does this work on 2011 328i xDrive?
Yes it will, what symptoms are your having?
@@Jay-May I just wanted to reset it for a fresh start :)
@@Jay-May hi i have a 2012 BMW X1 cranks over but wont start what do you think
@@charlil1226 fuel pump or relay
I saw another video that he just removed the two wires from the battery and connect the together ! Do i need to connect the positive terminal to the chassis ? Or what thank you
Connecting the positive and negative cables will drain all the power from the system. You want the battery out of the equation when you connect.
@@Jay-May what do you mean exactly by connecting the positive and negative together? Sorry I’m new to this
@@Jay-May *Hey Jay. I have a 2007 BMW 750LI and it runs for 30 seconds and shuts off. Any suggestions?*
@@GMONEY79 wow never seen anything like that. Could it be the tps? Or a vacuum leak? I see your post is from 1 year ago and I find your issue very amusing, did you get to solve it?
Sadly this doesnt work if u get DPF error message.
This is to reset errors that you think might be wrong, but if you have a DPF error you should know the problem, spend the money to get a new filter. Of it's clogged because of a maintenance issue, fix it. BMW stands for Bring Money Willingly. I had a cat problem and had to replace them at a cost of 2500 USD just for parts. Since I replaced them no more problems.
@@Jay-May I guess dpf delete it is!! :D
If I disconnect the battery, it will decode my radio
How to fix cc-id 415?
Will this work on a bmw m140i 2017?
nah newer cars wont work have a 2018 m140i tried it doesnt work
You did a terrible job explaining that. You hooked the positive to the Negative? What? With jumper cables? What? Step by step. Either people go on and on and don't get to the point, or they skip stuff and don't explain it.
I hooked the negative to the positive to ground/drain all the power in the electrical system with a jumper cable. The ends didn't meet because the battery was too wide, hence the jumper cables.
Now the other end of cables do you hook them to the post under hood
What are you doing exactly because you didn't explain it very well? Are you taking the just the red side of a jumper cable and hooking both ends to the positive and negative terminals on the car?
Basically we are connecting the positive to the negative. This drains the power to capacitors and clears codes that are stored in the ECU and various other systems within the car. Programming is retained, just error codes are removed.
I used jumper cables because the two wires are short and can't connect normally, so I used jumper cables to complete the circuit.
@@Jay-May I also didnt get you at all but does the pasitive terminal get connected to the battry or is it terminal to terminal??
Remove both live+ negative cabbles from the battery,place single jump lead ,conect one side to the red cabble,other side to the negative black canble turn lights on to drain all power left in the system should not take more than 30seconds. Now remove the jump lead from both sides,re connect live + negative back to the battery. Job done. Hope this helps.
@@bmwe30club64live terminal to negative cable ,both terminals has to be removed,conect a single jump lead from the positive conector to the negative,turn lights on just to aid the power that is left in the system 30 seconds will be enough then remove jump lead re connect to battery.
Or turn on headlights zero electricity in system
Is that on the positive side
Your looking to make a connection between the negative and positive battery cables while they are off the battery. I used jumper cables because the battery cables would not reach each other.
@@Jay-Mayso did you comente y the red (positive ) jumper cables to them both or did you connect negivitves to them both
does it work on 02 bmw 745li
This works on all BMW's and Mini's, but if you continue to have problems buy a scanner to figure out the reason you are having problems.
I replaced the battery starter and alternator and it still dies and won’t start after like 15-20 mins
you figure it out i may have same issue
but with my x3 e83
Hey I have a question and I hope you can help me out here. I have a BMW 325xi, and I have no knowledge of car terms etc but I will try explaining this anyway. Basically the car's ECU has been programmed or coded or whatever to limit the max speed of the car to 30 km/h and I am looking to revert this to it's factory setting or default state. Do you possibly know how to do this? If you need any more info please let me know.
Speed limits can be changed through the I-Drive thingy
I don't know much about BMW but I know they save memory longer in the ECU or ECM so you have to leave battery terminals disconnected for at least 24 hours and turn on headlight switch to make sure any power left in the system is drained before ECM will reset.
Will this work on my activehybrid3 it's a 2013
What's the problem?
@@Jay-May check engine light recently turned thinking it's a fuel tank issues or EVAP leak somewhere
@@zekejones7259 might be a gas cap, if you over fill the gas sometimes it effects the evap tank. Check those first. Get an OBD code reader and check, it will give you a better direction to diagnose
Those are jumping cables right? If so, the 2 negative ends of the jumping cables how should they rest out?
So in this case, your looking to connect the negative for the battery and the positive for the battery with a wire to make a connection to drain the capacitors. I used the negative side of the jumper cables to make this connection, the positive side of the jumper cables aren't used.
@@Jay-May thank you
I just replaced the Camshaft Position Sensor. I was told I need to reset my computers for the replacement to activate or something. Would this work on my 04 530i
This will work to reset, but with a camshaft sensor it should pick up immediately that it's been replaced. Resetting the computer would only remove the fault code for the sensor, which wouldnt effect the way the car runs
You’ll need an obd connector to reset your computer and fault codes
@@lickmybaws a simple obd reader will give you general faults, but getting INPA or something similar will further diagnose what the actual problem is
I meant in general if it’s a stored fault code any OBD scanner can reset it. It doesn’t give specific INPA data but it will clear them if they’re only there for a previous fault that’s now fixed.
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Hu?!
I get a kick out of seeing all these people trying to figure out what's wrong with their BMW I also own one of these cars they are so fun when they are running but when they aren't they are complete shit and will cost you a fortune to keep it running. This is exactly what the engineers of these cars planned! Obsolence in a world of kaos! Dont buy a bmw! EVER!
Dont try this!
Risk of losing the rolling code between cas and ews.
Then car wont start.
Ive done this will all my BMW's and haven't had that issue from my E36 to the E70 and E90.
Don't do this on the latest G05 generation. You will have major issues.
Explain!
How long does it take to drain the battery ?
30 seconds he said
I think he was trying to say is drain the capacitor in the car circuit not to drain the battery :)
This video was soo bad buddy! Wat did u do!!!!!
Replacement of the alternator, the charge diodes went bad.
I got abs, dcs brake light and 4x4. Battery died 2months ago when I changed the spark plugs. You think this will clear all the light codes? So positive on terminal and neg on neg?
Go and drive the car after a while it the 4x4 light should go away it has to relearn everything since battery died .. or have you manage to fix this another way ?
Turn the steeringwheel all the way to the left and alla the way to the righ, full lock, dont remember if you are supposed to turn to the left or right first but try both ways and it will go away, you need to “calibrate”
I took out my passenger seat to address a cable issue . Now the airbag light is on how can i reset. 2002 bmw 530i
I had the battery die on my e90 and the airbag lights were on for about 2 days. They went out eventually. Sometimes the lights will reset after a few cycles of running. Let me know if they are still on and I can suggest what to do next.
I got no communication to the ecu on my e46 330cd would it work for that before I try it?
Check the fuses, after that try the hard reset.