Dude, you just described and touched on every single problem I am having with my 2008 Chevy HHR. Rear door hatch will not open (unless you put a fuse in an empty fuse position). My rear wiper on that door will not work although it does when you bypass the relay under the engine compartment fuse box. Rear left passenger door window will not roll up and down or is intermittent. ABS and Traction dash lights are on yet. There are no issues with those things. I just bought this a few days ago and I swear it feels like it is possessed. The funny thing? The car engine and transmission runs so damn well it rides smooth like a new car. I am a gigging musician who travels and needs the space in the back for some of my equipment. I thought these would be easy fixes. Speed sensors are working fine as they are relaying back perfect information and hooked up to a very expensive scanner can clear the lights but they just come on again. If I buy a new one or a used one, I hear they have to be programmed? Can only the dealer do this?

thank you wonderful explanation on what the bcm and ecm do

This could be daunting task for independent mechanics coming into a dealership, this information is spot on ...

Very good explanation thank you for your time to teach God Bless 🙏🙏

Good overview on faulty bcm's and the consequences of interacting with the ecm and external inputs.

I believe I fried the BCM on my '06 Taurus several years ago while doing an oil change. My filter wrench shorted out against the hot wire to the starter which Ford engineers decided did NOT need a rubber boot covering it. Always disconnect the battery cable or at the very least, wrap electrical tape around the band on the filter wrench on these vehicles.

My 07 suburban is doing this key on no crank, radio shuts off /on the dash shuts off /on windows heater controls sometimes it will start thank you for your video

2008 clio mk3----went to start yesterday-nothing just a clicking noise coming from BCM unit which is located under glove box--i then noticed wipers very slow and lights on dash flashing uncontrolably----tried numerous times same thing happened---rang mechanic-he said BCM unit needs removed and sent to specialist repair shop-----------cost about £350 sterling for fix --------not sure how much new one is i c one at £470 on ebay but then u have to take it to renault garage to get it reprogrammed-----would that cure my problem based on info i gave or would u recommend a new one-thanks for ur assistance

Described every symptom my g37x had before limp mode was activated and tranny slipped! Thanks so much,infinitis are notorious for the damn sunroof leaks, i’m wondering if the BCM can be rebuilt so no reprogramming is necessary?

my nissan cant detect my key fob and I cant start the car. no lights on dash except the key and step on pedal. I suspect its the BCM...HELP

I have a 2011 Sonata LE that has a sunroof. Sometimes it work, but usually not. I see there are two fuses that service the Sunroof: a 7.5A fuse that also has BCM on it (column 5,mrow 2) as well as a 20a fuse on column 4, row 4). I think a short to the Sunroof switch or motor is draining my battery overnight, or two nights. If I pull the BCM Module 2 fuse, will it affect anything else? Thanks.

Thank you for the instructional video!

2:43 Hello I have a 2003 Chevy avalanche 1500 4x4 z71 with 5.3 liter engine, some times or every other day on initial first startup and any start up through the day , I have reduce engine power, my cluster gauges flash , my language settings change from English to French or Spanish , my rear view mirror direction info start scrambling , I get engine sensor codes going off , and the sensor was replaced 2 todays before and engine stops running for about 20 miles rough down the road bad gas smell and then it shuts off , I have to wait for about a hr then it will start but rough and then it will smooth out very unpredictable . Also on initial morning startup it back fires loud and won’t start , then turn key off and starts right up fine and runs good for about 20 miles then dies . You think it’s bad bcm or ecm

does the bcm control ride quality c5 corvettes?. I get a service ride control message. Scanned vehicle but got no codes

I have a 2015 silverado 1500 LTZ. My dash lights sometimes flicker, headlights flicker and volt meter will bounce between 12 and 14.5 volts. I have checked both grounds in cab by A-pillars, both clean and no obstruction. Cleaned both grounds from battery to frame and motor and replaced battery ground sensor. I do get a loss of power steering but not that often. So could a failing BCM be responsible?

my g35x wont start. i can press the push start & all the lights/accessories turn on but no crank or engine sound at all. the lights on the dash flicker as do the inside cabin lights & then it wont turn off by itself by push of the button. i have to disconnect the battery for the car to turn off again

would this effect my remotes? I boughta new one as I thought my old one was wore out 2010 dodge Dakota. But the lock smith said they were working fine. It must me something in the car?

Do you think it would be the same problem for 2009 cadillac sts the trunk won't open and the airbag light came on. Also the power seats won't move forward or backwards. The steering wheel won't adjust either.

I brought a BCM its now at the FORD place costing me over 300 bucks but I hope it works ! Now they are calling me saying it might not be that ! After it was diagnosed elsewhere. They want more money from me. Smh

With access to the BCM, can I disable non-canbus recognition since I have LEDs all over the car?

I’m working on a howo truck from china that fell into a ditch on its side , after making repairs we found the BCU badly damage , burnt to a crisp, I would like to know if the door lock or window switch can cause the BCU to fail if there are shorted out ?

Our 2010 Nissan Murano intermittently will turn over fine. It just wont actually start. No ebgine codes. But we do have B2562 and B2606 codes with the scanner. No trouble lights on dash. Wait 30 mins and it starts up and runs great. These codes both point to BCM or harness. Could that cause a crank, but not start?

My father has a 05 grand cherokee, crank but no start and every time you turn the key the wipers cycle about a dozen times before finally stopp9ng in a random place, a bunch of codes for losimg connections , what do you think

Hello, if you have a bad bcm, could that cause all your sensors to throw a high & low voltage code, like P0118, P0122, P0223, & P0443. I change all the sensor connectors & sensors. Van still will not start. Have new spark plugs wires, spark plugs, & coils. No spark, even have new ECU. All fuses, & relays are good. New battery, alternator, starter, & water pump. Checked wire harness, & wires. They look like they're in good shape. I checked all my grounds, they were still connected well. What could be the reason for them codes still? My bcm is malfunctioning for sure. I noticed I had experienced some of those symptoms ya mentioned in the past. I was having ECU problems, but didn't realize I was having bcm problems, as well. Help.

Confirms what I was told.

Good video thanks, my 2012 Volkswagen Sharan vehicle starts and drives without problem but the interior lighting, multimedia radio and sunroof no longer work. Do you have any idea of ​​the problem? Thanks in advance.

I have a 06 DTS it will every once in a blue say service traction control and stabilitrak. I will show up and beep for a few seconds then stop then I may not see if for a while. It is giving a BCM module code but I feel like it may be a bad wire somewhere as it doesn't seem to affect anything else.

So once I get the replacement BCM for my truck does it needs to be reprogrammed?

I have issues with the horn and the wipers on my Nissan Versa Hatchback 2008. I believe the BCM might be faulty. Everything else works fine.

I have about 7 BCM codes but everything is working fine besides the remote start. Which is only not working assuming because of the codes. What else could it be if everything is functioning properly? 2019 f250

Hi. I changed engine in my Ford Kuga 2013. Which pcm should I use. The one on the previous engine or the one on the new engine’

I have a 2013 Ssangyong Stavic - Car has automatic locking at 50kmph. However the car will continue trying to lock the doors after they have already locked. And will then unlock as the car slows down. So car is constantly locking/unlocking the doors while driving. The aircon also works intermittently. Sometimes will be really cold, and other times feels like the heater is on with the same aircon setting. - I also have an electric window on the drivers side which is very slow to go back up. Could these all be symptoms of a faulty BCM?

Ok I have a question, if i disconnect my BCM i have to disconnect the battery first? Then Remove the BCM and put things back in that order? If i Remove BCM so i can get the part no. I will have to have it reprogrammed? Also After I remove it and put back the original one Will the car start with no issues? As I want to drive it back to the Programmer so he can program my ECU but i need to remove it to make sure I am getting the correct part. His Autel Scanner Read 284B2-89910 but I cannot for the life of me I can't find that part no. All the ones on Ebay or at online Dealers say 284B1-XXXXX but none says 284B2-89910 for the reason I must remove it to make sure what is the correct part no. Thanks for your reply.

I sent my car to the dealership mercedes...and they said . That I have a bad cluster...so I change the cluster..and I still having the same problem...and they said that they need to continue the diagnosis...and the cluster price was 1800 dollars...so I need to go to your place

Can a fCM cause my starter to not start ? Starter can jump from bolts but can't start from jumping from fuse , or from key . fCM was dented in fender bender

OK, I have watched your videos religiously. I replaced my BCM on my 08 HHR. Everything works great except the traction control button. It used to work before I replaced the BCM but after replacing, it no longer works. Is this something that can be controlled by the BCM? And can it still be programmed in there? In other words, did somebody not program it to work sorry for all the questions. Everything else came back to life except this one thing. And of course it’s bothering the hell out of me.

Hi there, I have a 2019 Chevy Equinox which has all sorts of intermittent electrical issues such as some or all power windows don't work for days and sometimes all work, sometimes the driver side door won't lock/unlock and sometimes it does, sometimes the interior lights works and sometimes it doesn't, sometimes the display changes from audio to android phone and vice versa and sometimes everything seems just fine and so on and so forth. This has been happening on and off since almost a year now after I bought this brand new. All fuses and relays seems good. Neither the Chevy service center nor auto electrical technicians can figure out the problem. Already spent some $$$ and these issues still remain, though the car drives great otherwise. Could this be the BCM issue or something else? Please advise. Thank you.

My brake light and high beam light on instrument cluster never fully turn off on mine. Suspecting a bad BCM. 04 Silverado

Need help; mazda cx5 with interior lights malfunction, headlamps dim, lock actuators malfunction and click constantly, trunk won’t open at times, car alarm won’t set occasionally, heat/ac does trippy stuff, radio acts up and now CEL with codes p013A, u0401:00 and u3003:16. I’m thinking it’s BCM but alternative solutions can be passenger side ground wire bolt has been painted during possible previous body work creating issue grounding (apparently a common issue with these vehicles) but ground wire could create some of my issues but doesn’t match everything. Wondering it 02 sensor code (p013A) is a separate issue or somehow connected to ground wire issue or even BCM faulty? Any suggestions?

Could a faulty Bcm prevent the car from actually flipping over? I have a g37 2013

Will the symptoms always be on/off problems. Could it cause issues such as things not working correctly rather than simply not working?

My problem with my Pontiac torrent is, the power stays on after I take the key out of the ignition. The windows roll up and down, the wipers turn on, the headlights turn on etc…, all without a key. Could this be a bcm problem?

well explained Thank you (UK)

I'm having absolutely no issues with my car, BUT I lost a key and wanted a replacement from the dealership where I bought it. And they can't code the new key... Is there any possibility of it being the BCM? That's what they said last time (they've tried various things - it's been 8 visits - one year since I asked for a new spare key...)

Thanks for the low down

My vehicle is ford ecosport 2015 modle. Ford has asked to bring my vehicle for recall(door locking programming system) and after that fog lamps not working. They tried everything by reprogramming with updates, fuse & relay replacement etc but still now they cannot identify the issue. What can be the problem could be?

I have a 2017 Porsche Macan. I try to use the key fob to open my doors but they won’t open. I stick the fob into the fob slot and turn it to start the car I get nothing. I hear a clicking sound in the BCM box. Do you think the BCM is no good ?

This was very helpful!

Doed bcm supply low pulse the injectors and make the diesel car jerk? Specific to ford figo.

My horn don't work sometimes. But my problem in my 05 Denali, the blower for front and back heat. One will blow one day maybe the other will work the next day. One usually works but mostly the front is out. New fan new resistor

Hi guys, I have a pb with my keys not detected when engine is one or off on my X5 f15. Do you know where can it’s be? Key battery, keys and bdc have been changed, but the pb still here. Any suggestion?

Got a faulty bcm for Kia seltos 21 car was not starting, After replacing the old bcm to another car started. Old bcm if you kind of bended it would start. How can I identify the fault any advice please?

is it the BCM when i have things activate on their own. Horn stays on, Rear dome lights stay on, one rear window goes down on it's own, Rear winsheild wiper is sporadic, cd disc changer is always running. i have disconnect the battery when i park. its a 1999 Jeep Grand Cherokee

I had my bike (2016 Road Glide Special) off the tender for a while *2 weeks*. Bike started up fine moved the bike. Fired up bike again, VINERR code popped up. Bought a new a battery. No luck... All these codes all popped up-U0001,U0100, U0121, U0140, U0184. All the gauges all not working correctly. Thought bike would reset after a ride, nothing. Can you give me any answers to these issues?

I have all of this problem, , should i replace my BCM? my unit is 2017 ford ecosport. The control module is insde the driver side door.

hi... good explanation but there are things I don't understand, my 1998 Buick Regal, the Power locks don't work, I only opened the driver's door with the beeper and the trunk... but the beeper broke and I bought two new but I can't program them, even if they work half as before, because the power locks don't work...so I got the electrical schematic of the system and I checked it completely and it seems to be fine, the actuators are working and have current, the same with the switch the doors... when you press to open it sounds a click click in three little boxes that look like relays and at the same time in the circuit relay it also clicks....so I bought a new one and it continues doing the same thing, I put the original one on it back and now it closes when you press to open and when you press to close it sounds three bells...also when you put the car in Parking it locks instead of opening...it drives me crazy and I don't know what to do...I know this post It's long but it seems to me that you are a person who can help me... a strange thing is that when I move the relay it stops working and clicks and then I move it from new and start to close... .thanks in advance for your help...if you have a email is better but is up to you.

Could it cause issues with the climate control on a Ram? May be HVAC module since screen says climate off and stays off yet fans work. I noticed weird issues like cruise stopped working then started working a day later. Hl says out but on. Did get the code that BCM lost communication, no HVAC code

Wow this is everything that is wrong with my Kia Sportage 2011 - when I start up, for a few minutes the dashboard is fine but nothing works, then after a few minutes the blinking starts.......turn signals, lights, windows don't work. The guy who looked at it said that the BCM is faulty and I remember a few years back water was coming into the vehicle from top of the windshield that was not properly sealed.......seems it got into the BCM which is under the dash. Now I can't get a BCM because Kia no longer manufacture for the 2011 model. I have been searching every website I know of, but nothing. What my tech can't tell me is if there is a way to modify the BCM since I can't get a replacement or does it mean my vehicle is now dead and done for since I can't drive at nights without lights.

Good afternoon.Pls can a faulty BCm make my infiniti ex35,2008 not to start and it had no key flashing on d dashboard whenever i press the start button

The drivers side passenger window has been randomly rolling down for about 7 years. My wipers sometimes stop while it's raining and then resume whenever they decide to

Can the bcm lock your electrical back brakes impala lt 2014

Hello. I have a ford transit custom 2014 and ambient lights, radio and alarm are not working if the ignition key is not on position 3. Can I get some help?

Would the BCM have anything to do with parking lights staying on all the time?

Hi great video, they have made these vehicles do hard to work on. I have a 19 Kia Sorento, LX V6 AWD, when I open the doors the interior lights don't come on. Tested the Map/Dome light assembly and it's works 100%. What would be the next step, replacing the BCM or is there a designated relay for the lights?

What should the canbus voltages be

Kool video. Thanks for the information. Now I just want to be clear That is if I am having multiple symptoms, like the door, lights, dash flicking, wiper etc all at the same time? Not just one, correct?

Also, since it communicates with other modules it can even create drivability issues with the car.

Well explained! Thanks…….

Can anyone give me some insight? I have a 2019 GMC sierra my left side DRL stopped working when my truck is in park but my right side does work also when I put it in drive the left side DRL does work? Can anyone explain

Short & sweet, nice vid! I’m considering 02 Jag XK8 but windows, rooftop and seats don’t work. Seller is saying it may need new control module. But I heard programming it can be difficult. Any suggestion or experience with this? Thank you

How about transmission issues or not engaging in a 2014 jeep Cherokee, and the only dtc is a body control module one.. replace bcm?

Could one of these be the issue if my obd2 port not communicating?

Is your shop located in the Los Angeles area? I was told I need a new BCM for my son’s Civic. Thanks

hi i have problem with my head light, they are always on even when switch is on zero and cant connect to central electric with diag is it possible that my bcm is at fault? i changed my comfort module for new one same issue.

I have a faulty BCm but I cant find a new one to buy. My car is a 212 scion XD. Most companies dont even know what Im talking about. Can anyone help me find this part to buy it.

Dou you have to reprogram the new used BCM on a 2010 Nissan Altima? If yes how do you do and how much it costs?

Infiniti there is no safe spot with the drains😂😂😂😂

My bcm is faulty my bcm has pink colour code but can I replace it with any other colours like green, blue, yellow etc will there be any compatibility

Any one can help me Sir, my wiper spray water is not working, is it because of the BCM? I have searched and tested the fuse, all are working fine

Great video. Any chance you could help me out on my 2009 Lexus Es350? Thanks

Can a failing bcm cause the engine to run poorly, like misfire, run rough, almost die if you put it in gear? So basically can a bad bcm module disrupt the can bus signals such that the ecm can’t operate properly?

i have no dash lights no blower fan no windows no horn no signals no electic seats no seat heatser 2012 golf tdi hatchback. my radio works and my alarm goes on at random times. is this my issue

Good

New sub here thanks

Thanks allot

Good day Mr. I had a Mazda Capella automatic motor 2.0 lt, year 2001, here in south américa it's 626 Millenium and the cabin lights fail and radio, I was restore the 10 amp fuse, and radio start work but cabin lights don't, can tell me where it's the BCM located, and where I can buy a same parte by internet, thank you for your cooperation y explain.

Thanks

Is BCM something a local auto shop can repair?

Does the BCM affect TPSM?

Why didn't they just make it part of the ecm

I have complete and total power failure on a Dodge Journey 2011. It's not the battery nor any fuse (and I'm very certain; I'm a motorcycle/aircraft tech). Seems like the BCM is the only single point of failure that could cause a complete failure of all things electrical when everything was running just moments before, right? Yes, I am CERTAIN it's not the battery, alternator, or fuses. It gets annoying getting advice from the student-level every day.

How do you program a new bcm for a 2014 jeep Cherokee latitude v4 engine?

My car all of a sudden electric windows ( only front ones ) stop working my windshield wipers stop working and my ac all at the same time including my key is sometimes not even detected on my bmw f30

2015 Nissan Altima I have a fault with my BCM I scan my whole entire car and it comes up an said BCM control system 1 fault my headlight is not showing bright enough like I don’t have any headlight. I change my bulb I pulling new headlight and lNothing change.

Can a faulty bcm also be the problem for trunk not opening?

Sadly VW cloud the issue by having a control module in the doors as well as an overall control module (comfort control module). Makes it hard to know which is faulty

My RPM and Coolant guages like to go up and down. Even at idle. Maybe BCM

I've got a loss of communication to the BCM on 03 LB7 sierra, won't truck allow it to run like the security is shutting it down (fires over and dies) however no security light on the dash, ive also got through the relearn procedure several times incase. In order to start the truck I have to turn 1. disconnect the batteries 2.turn the key to the first position 3. Hold the positive cables to the negative cables for 10 seconds. 4. Reconnect battery cables to terminals. 5. Turn the key the rest of thebway to start position, it will fire and run. After shutting off it will restart until it times out. I'm suspecting a can bus or data wire between the FICM and BCM has open circuit. This problem has been put on the back burner for since the fall, I'm about to get back into it. Any lead you can give would be a god send. Tha ks for the video!

My BCM show 3 fault but everything still works what should I do

Is it the bcm or should you call ghost busters